refractive errors

Summary

Summary: Deviations from the average or standard indices of refraction of the eye through its dioptric or refractive apparatus.

Top Publications

  1. pmc Global magnitude of visual impairment caused by uncorrected refractive errors in 2004
    Serge Resnikoff
    Chronic Disease Prevention and Management, WHO, Geneva, Switzerland
    Bull World Health Organ 86:63-70. 2008
  2. ncbi Refractive error and visual impairment in urban children in southern china
    Mingguang He
    Zhongshan Ophthalmic Center, Guangzhou, People s Republic of China
    Invest Ophthalmol Vis Sci 45:793-9. 2004
  3. ncbi Refractive errors in an elderly Japanese population: the Tajimi study
    Akira Sawada
    Department of Ophthalmology, Gifu University Graduate School of Medicine, Gifu, Japan
    Ophthalmology 115:363-370.e3. 2008
  4. ncbi Computer-assisted measurement of retinal vessel diameters in the Beaver Dam Eye Study: methodology, correlation between eyes, and effect of refractive errors
    Tien Yin Wong
    Department of Ophthalmology, University of Wisconsin, Madison, Wisconsin, USA
    Ophthalmology 111:1183-90. 2004
  5. ncbi Refractive errors in a rural Chinese adult population the Handan eye study
    Yuan bo Liang
    Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing Ophthalmology and Visual Science Key Laboratory, Dongcheng District, Beijing, China
    Ophthalmology 116:2119-27. 2009
  6. pmc Rapid assessment of avoidable blindness in Western Rwanda: blindness in a postconflict setting
    Wanjiku Mathenge
    Rift Valley Provincial Hospital, Nakuru, Kenya
    PLoS Med 4:e217. 2007
  7. ncbi Refractive error and visual impairment in school-age children in Gombak District, Malaysia
    Pik Pin Goh
    Department of Ophthalmology, Hospital Selayang, Selangor, Malaysia
    Ophthalmology 112:678-85. 2005
  8. pmc Causes of visual impairment in people aged 75 years and older in Britain: an add-on study to the MRC Trial of Assessment and Management of Older People in the Community
    J R Evans
    Department of Epidemiology and International Eye Health, Institute of Ophthalmology, London, UK
    Br J Ophthalmol 88:365-70. 2004
  9. ncbi Blindness in the Indian state of Andhra Pradesh
    L Dandona
    International Centre for Advancement of Rural Eye Care, L V Prasad Eye Institute, Hyderabad, India
    Invest Ophthalmol Vis Sci 42:908-16. 2001
  10. pmc Blindness and visual impairment in the Americas and the Caribbean
    B Munoz
    Dana Center, Wilmer Eye Institute, Johns Hopkins University, Baltimore, MD 21287, USA
    Br J Ophthalmol 86:498-504. 2002

Detail Information

Publications286 found, 100 shown here

  1. pmc Global magnitude of visual impairment caused by uncorrected refractive errors in 2004
    Serge Resnikoff
    Chronic Disease Prevention and Management, WHO, Geneva, Switzerland
    Bull World Health Organ 86:63-70. 2008
    Estimates of the prevalence of visual impairment caused by uncorrected refractive errors in 2004 have been determined at regional and global levels for people aged 5 years and over from recent published and unpublished surveys...
  2. ncbi Refractive error and visual impairment in urban children in southern china
    Mingguang He
    Zhongshan Ophthalmic Center, Guangzhou, People s Republic of China
    Invest Ophthalmol Vis Sci 45:793-9. 2004
    ..To assess the prevalence of refractive error and visual impairment in school-age children in a metropolitan area of southern China...
  3. ncbi Refractive errors in an elderly Japanese population: the Tajimi study
    Akira Sawada
    Department of Ophthalmology, Gifu University Graduate School of Medicine, Gifu, Japan
    Ophthalmology 115:363-370.e3. 2008
    To evaluate the prevalence of refractive errors associated with age, gender, and central corneal thickness and to evaluate astigmatism in the refraction and keratometry in a randomly sampled elderly Japanese population.
  4. ncbi Computer-assisted measurement of retinal vessel diameters in the Beaver Dam Eye Study: methodology, correlation between eyes, and effect of refractive errors
    Tien Yin Wong
    Department of Ophthalmology, University of Wisconsin, Madison, Wisconsin, USA
    Ophthalmology 111:1183-90. 2004
    ..method to measure retinal vessel diameters from digitized fundus photographs in a large population, and examine the correlation of retinal vessel diameters between eyes and whether refractive errors affect these measurements.
  5. ncbi Refractive errors in a rural Chinese adult population the Handan eye study
    Yuan bo Liang
    Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing Ophthalmology and Visual Science Key Laboratory, Dongcheng District, Beijing, China
    Ophthalmology 116:2119-27. 2009
    To describe the prevalence of and risk factors for myopia and other refractive errors in a rural, adult, Chinese population.
  6. pmc Rapid assessment of avoidable blindness in Western Rwanda: blindness in a postconflict setting
    Wanjiku Mathenge
    Rift Valley Provincial Hospital, Nakuru, Kenya
    PLoS Med 4:e217. 2007
    ....
  7. ncbi Refractive error and visual impairment in school-age children in Gombak District, Malaysia
    Pik Pin Goh
    Department of Ophthalmology, Hospital Selayang, Selangor, Malaysia
    Ophthalmology 112:678-85. 2005
    ..To assess the prevalence of refractive error and visual impairment in school-age children in Gombak District, a suburban area near Kuala Lumpur city...
  8. pmc Causes of visual impairment in people aged 75 years and older in Britain: an add-on study to the MRC Trial of Assessment and Management of Older People in the Community
    J R Evans
    Department of Epidemiology and International Eye Health, Institute of Ophthalmology, London, UK
    Br J Ophthalmol 88:365-70. 2004
    ..It is important to know the causes of visual impairment to develop health service and research priorities. The authors aimed to identify the causes of visual impairment in people aged 75 years and older in Britain...
  9. ncbi Blindness in the Indian state of Andhra Pradesh
    L Dandona
    International Centre for Advancement of Rural Eye Care, L V Prasad Eye Institute, Hyderabad, India
    Invest Ophthalmol Vis Sci 42:908-16. 2001
    ..To determine the current prevalence and causes of blindness in the Indian state of Andhra Pradesh to assess if blindness has decreased since the last survey of 1986-1989...
  10. pmc Blindness and visual impairment in the Americas and the Caribbean
    B Munoz
    Dana Center, Wilmer Eye Institute, Johns Hopkins University, Baltimore, MD 21287, USA
    Br J Ophthalmol 86:498-504. 2002
    ..To summarise available data on the prevalence and causes of visual impairment and blindness in the Americas and the Caribbean...
  11. ncbi Rapid assessment of avoidable blindness in Nakuru district, Kenya
    Wanjiku Mathenge
    Rift Valley Provincial Hospital, Nakuru, Kenya
    Ophthalmology 114:599-605. 2007
    ..To estimate the prevalence of avoidable blindness in > or =50-year-olds in Nakuru district, Kenya, and to evaluate the Rapid Assessment for Avoidable Blindness (RAAB), a new methodology to measure the magnitude and causes of blindness...
  12. pmc Nature and nurture: the complex genetics of myopia and refractive error
    R Wojciechowski
    Statistical Genetics Section, Inherited Disease Branch, National Human Genome Research Institute NIH, 333 Cassell Drive, Baltimore, MD 21224, USA
    Clin Genet 79:301-20. 2011
    The refractive errors, myopia and hyperopia, are optical defects of the visual system that can cause blurred vision. Uncorrected refractive errors are the most common causes of visual impairment worldwide. It is estimated that 2...
  13. ncbi Prevalence and risk factors for refractive errors in Indians: the Singapore Indian Eye Study (SINDI)
    Chen Wei Pan
    Department of Epidemiology and Public Health, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
    Invest Ophthalmol Vis Sci 52:3166-73. 2011
    To determine the prevalence and risk factors for refractive errors in middle-aged to elderly Singaporeans of Indian ethnicity.
  14. ncbi Effect of refractive error correction on health-related quality of life and depression in older nursing home residents
    Cynthia Owsley
    Department of Ophthalmology, School of Medicine, University of Alabama at Birmingham, 700 S 18th St, Ste 609, Birmingham, AL 35294 0009, USA
    Arch Ophthalmol 125:1471-7. 2007
    ..To examine the effect of treating uncorrected refractive error through spectacle correction on vision-targeted health-related quality of life and depressive symptoms in nursing home residents...
  15. ncbi Refractive error, axial length and anterior chamber depth of the eye in British adults: the EPIC-Norfolk Eye Study
    P J Foster
    Division of Genetics and Epidemiology, UCL Institute of Ophthalmology, University College London, London, UK
    Br J Ophthalmol 94:827-30. 2010
    ..To describe the distribution, and demographic and socioeconomic correlates of refractive error and related ocular biometry in an older British population...
  16. pmc Prevalence of blindness and low vision in Malaysian population: results from the National Eye Survey 1996
    M Zainal
    Department of Ophthalmology, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
    Br J Ophthalmol 86:951-6. 2002
    ..A national eye survey was conducted in 1996 to determine the prevalence of blindness and low vision and their major causes among the Malaysian population of all ages...
  17. pmc Prevalence of eye diseases in primary school children in a rural area of Tanzania
    S H Wedner
    Infectious and Tropical Diseases Department, London School of Hygiene and Tropical Medicine, London, UK
    Br J Ophthalmol 84:1291-7. 2000
    ....
  18. ncbi Prevelence and causes of visual impairment and blindness in older adults in an area of India with a high cataract surgical rate
    Gudlavalleti V S Murthy
    International Centre for Eye Health, London School of Hygiene and Tropical Medicine, London
    Ophthalmic Epidemiol 17:185-95. 2010
    ..This study was conducted to investigate the prevalence and causes of vision impairment/blindness among older adults in a high CSR area...
  19. pmc Prevalence and causes of blindness and visual impairment in Bangladeshi adults: results of the National Blindness and Low Vision Survey of Bangladesh
    B P Dineen
    International Centre for Eye Health, Clinical Research Unit, Department of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, London, UK
    Br J Ophthalmol 87:820-8. 2003
    ..To determine the age, sex, and cause specific prevalences of blindness and visual impairment in adults 30 years of age and older in Bangladesh...
  20. ncbi Refractive error in urban and rural adult Chinese in Beijing
    Liang Xu
    Beijing Institute of Ophthalmology, Tongren Hospital, Beijing, China
    Ophthalmology 112:1676-83. 2005
    ..To evaluate refractive error and its demographic associations in an urban and rural population in northern China...
  21. ncbi Refractive error and visual impairment in school children in rural southern China
    Mingguang He
    Key Laboratory of Ophthalmology and Zhongshan Ophthalmic Center, Sun Yat Sen University, Guangzhou, China
    Ophthalmology 114:374-82. 2007
    ..To assess the prevalence of refractive error and visual impairment in school children in a rural area of southern China...
  22. ncbi Visual disability, visual function, and myopia among rural chinese secondary school children: the Xichang Pediatric Refractive Error Study (X-PRES)--report 1
    Nathan Congdon
    Joint Shantou International Eye Center, Shantou University and Chinese University of Hong Kong, Shantou, Peoples Republic of China
    Invest Ophthalmol Vis Sci 49:2888-94. 2008
    ..To evaluate visual acuity, visual function, and prevalence of refractive error among Chinese secondary-school children in a cross-sectional school-based study...
  23. ncbi Axial growth and changes in lenticular and corneal power during emmetropization in infants
    Donald O Mutti
    Ohio State University College of Optometry, 338 West Tenth Avenue, Columbus, OH 43210 1240, USA
    Invest Ophthalmol Vis Sci 46:3074-80. 2005
    ..To evaluate the contribution made by the ocular components to the emmetropization of spherical equivalent refractive error in human infants between 3 and 9 months of age...
  24. ncbi Power vectors: an application of Fourier analysis to the description and statistical analysis of refractive error
    L N Thibos
    School of Optometry, Indiana University, Bloomington, USA
    Optom Vis Sci 74:367-75. 1997
    ..of a sphero-cylinder lens for numerical and graphical analysis of optometric data are described for problems involving lens combinations, comparison of different lenses, and the statistical distribution of refractive errors.
  25. pmc The prevalence and risk indicators of uncorrected refractive error and unmet refractive need in Latinos: the Los AngelesLatino Eye Study
    Rohit Varma
    Doheny Eye Institute and the Department of Ophthalmology, Los Angeles, CA 90033, USA
    Invest Ophthalmol Vis Sci 49:5264-73. 2008
    ..To determine the age- and sex-specific prevalence and risk indicators of uncorrected refractive error and unmet refractive need among a population-based sample of Latino adults...
  26. ncbi Refractive errors and amblyopia in children entering school: Shahrood, Iran
    Payman Jamali
    Shahrood Welfare Organization, Shahrood, Iran
    Optom Vis Sci 86:364-9. 2009
    To determine the prevalence of amblyopia, strabismus, and refractive errors in children entering school.
  27. ncbi Refractive error in children in an urban population in New Delhi
    G V S Murthy
    Dr Rajendra Prasad Centre for Ophthalmic Sciences, All India Institute for Medical Sciences, New Delhi, India
    Invest Ophthalmol Vis Sci 43:623-31. 2002
    ..To assess the prevalence of refractive error and related visual impairment in school-aged children in an urban population in New Delhi, India...
  28. pmc Comparison of refractive errors and factors associated with spectacle use in a rural and urban South Indian population
    Raju Prema
    Vision Research Foundation, Sankara Nethralaya, Chennai, India
    Indian J Ophthalmol 56:139-44. 2008
    To compare the prevalence of refractive errors and factors associated with spectacle use in a rural and urban south Indian population.
  29. pmc Potential lost productivity resulting from the global burden of uncorrected refractive error
    T S T Smith
    Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD, United States of America
    Bull World Health Organ 87:431-7. 2009
    ..To estimate the potential global economic productivity loss associated with the existing burden of visual impairment from uncorrected refractive error (URE)...
  30. ncbi Impact of Ramadan fasting on intraocular pressure, visual acuity and refractive errors
    M Assadi
    The Persian Gulf Nuclear Medicine Research Centre, Bushehr University of Medical Sciences, Bushehr 3631, Iran
    Singapore Med J 52:263-6. 2011
    ..In this study, we investigated the possible alterations in intraocular pressure (IOP), visual acuity and refractive errors during Ramadan fasting.
  31. ncbi Effects of different monochromatic lights on refractive development and eye growth in guinea pigs
    Rui Liu
    Department of Ophthalmology, Eye and ENT Hospital, Fudan University, 83 FengYang Road, Shanghai 200031, China
    Exp Eye Res 92:447-53. 2011
    ..5 D) in the guinea pigs eyes. The results suggest that the guinea pigs' eyes overcompensated in response to narrow-band light, which resulted in an exaggerated and inaccurate refractive growth...
  32. ncbi Advantages and disadvantages of the Zernike expansion for representing wave aberration of the normal and aberrated eye
    Stephen D Klyce
    LSU Eye Center, Louisiana State University Health Sciences Center, New Orleans, Louisiana 70112, USA
    J Refract Surg 20:S537-41. 2004
    ..Zernike expansion has been selected for use in describing wavefront aberrations in the human eye. The advantages and limitations of this approach are assessed for eyes with varying degrees of aberration...
  33. ncbi Prevalence of refractive errors among schoolchildren in Shiraz, Iran
    Abbasali Yekta
    Department of Optometry, Mashhad University of Medical Sciences, Mashhad, Vali Asr Ave, Tehran 19686, Iran
    Clin Experiment Ophthalmol 38:242-8. 2010
    To determine the prevalence of refractive errors in Shiraz schoolchildren by age and gender.
  34. ncbi Prevalence of the refractive errors by age and gender: the Mashhad eye study of Iran
    Hadi Ostadimoghaddam
    Department of Optometry, School of Paramedical Sciences, Mashhad University of Medical Sciences, Mashhad, Iran
    Clin Experiment Ophthalmol 39:743-51. 2011
    b>Refractive errors are a common eye problem. Considering the low number of population-based studies in Iran in this regard, we decided to determine the prevalence rates of myopia and hyperopia in a population in Mashhad, Iran.
  35. ncbi Correctable visual impairment in older people: a major unmet need
    Bruce J W Evans
    Institute of Optometry, 56 62 Newington Causeway, London SE1 6DS, UK
    Ophthalmic Physiol Opt 24:161-80. 2004
    ..The majority of these people have correctable visual problems (refractive errors or cataract)...
  36. ncbi Cycloplegic refractions in healthy children aged 1 through 48 months
    D L Mayer
    Department of Ophthalmology, Children's Hospital Boston, 300 Longwood Ave, Boston, MA 02115, USA
    Arch Ophthalmol 119:1625-8. 2001
    OBJECTIVES: To provide a description of refractive errors in healthy, term-born children, aged 1 through 48 months, and to test the hypotheses that spherical equivalent becomes significantly less hyperopic and less variable with ..
  37. ncbi Refractive errors and age-related macular degeneration: a systematic review and meta-analysis
    Chen Wei Pan
    Saw Swee Hock School of Public Health, National University of Singapore, Singapore
    Ophthalmology 120:2058-65. 2013
    To evaluate the association between refractive errors and age-related macular degeneration (AMD).
  38. ncbi Refractive errors survey in primary school children (6-12 year old) in 2 provinces: Bangkok and Nakhonpathom (one year result)
    Penpimol Yingyong
    Department of Ophthalmology, Mettapracharak Eye Center, Nakhonpathom, Thailand
    J Med Assoc Thai 93:1205-10. 2010
    ..Refractive error is an important cause of preventable visual impairment and blindness worldwide. Population-based studies will continue to be a key part in identification ofthe magnitude and the importance of this common eye disease...
  39. ncbi The association between refractive cutoffs for spectacle provision and visual improvement among school-aged children in South Africa
    Nathan G Congdon
    Chinese University of Hong Kong, Department of Ophthalmology and Visual Sciences, Hong Kong Eye Hospital 3 F, 147K Argyle St, Kowloon, Hong Kong SAR
    Br J Ophthalmol 92:13-8. 2008
    ..To evaluate different refractive cutoffs for spectacle provision with regards to their impact on visual improvement and spectacle compliance...
  40. ncbi Sensitivity and specificity of visual acuity screening for refractive errors in school children
    Louis Tong
    Singapore National Eye Centre, Singapore
    Optom Vis Sci 79:650-7. 2002
    To examine the optimal cutoff point for the use of the visual acuity test to screen for refractive errors in schoolchildren.
  41. ncbi Correctable visual impairment in an elderly Chinese population in Taiwan: the Shihpai Eye Study
    Tung Mei Kuang
    Department of Ophthalmology, Taipei Veterans General Hospital, Taipei, Taiwan
    Invest Ophthalmol Vis Sci 48:1032-7. 2007
    ..To investigate the prevalence and risk factors of correctable visual impairment and the quality of life of persons with correctable visual impairment in a metropolitan senior population...
  42. ncbi Cost-effectiveness of screening and correcting refractive errors in school children in Africa, Asia, America and Europe
    Rob Baltussen
    International Health Unit, Department of Public Health, Radboud University Nijmegen Medical Center, Nijmegen, The Netherlands
    Health Policy 89:201-15. 2009
    To estimate the costs and effects of alternative strategies for annual screening of school children for refractive errors, and the provision of spectacles, in different WHO sub-regions in Africa, Asia, America and Europe.
  43. ncbi Ocular biometry and refraction in Mongolian adults
    Sanjeewa Wickremasinghe
    Moorfields Eye Hospital, London, United Kingdom
    Invest Ophthalmol Vis Sci 45:776-83. 2004
    ..To describe the variation in ocular biometry and its association with refraction in adult Mongolians...
  44. ncbi The influence of chronic diabetes mellitus on the thickness and the shape of the anterior and posterior surface of the cornea
    Nanouk G M Wiemer
    Department of Ophthalmology, VU University Medical Center, 1007 MB, Amsterdam, The Netherlands
    Cornea 26:1165-70. 2007
    ..To determine the influence of diabetes mellitus (DM) type 1 and type 2 on the thickness, radius of curvature, power, and asphericity of the cornea...
  45. ncbi Refractive error and visual impairment in African children in South Africa
    Kovin S Naidoo
    Department of Optometry, University of Durban Westville, Durban, South Africa
    Invest Ophthalmol Vis Sci 44:3764-70. 2003
    ..To assess the prevalence of refractive error and visual impairment in school-aged African children in South Africa...
  46. ncbi Measuring the refractive properties of the diabetic eye during blurred vision and hyperglycaemia using aberrometry and Scheimpflug imaging
    Nanouk G M Wiemer
    Department of Ophthalmology, VU University Medical Center, Amsterdam, The Netherlands
    Acta Ophthalmol 87:176-82. 2009
    ..This study aimed to measure the refraction and geometry in the diabetic eye during the presence and absence of hyperglycaemia and blurred vision, using aberrometry and Scheimpflug imaging...
  47. ncbi Prevalence of uncorrected refractive errors, presbyopia and spectacle coverage in marine fishing communities in South India: Rapid Assessment of Visual Impairment (RAVI) project
    Srinivas Marmamula
    Allen Foster Community Eye Health Research Centre, L V Prasad Eye Institute, Hyderabad Bausch, India
    Ophthalmic Physiol Opt 32:149-55. 2012
    To investigate the prevalence of uncorrected refractive errors, presbyopia and spectacle coverage in subjects aged 40 years or more using a novel Rapid Assessment of Visual Impairment (RAVI) methodology.
  48. ncbi Refractive errors and visual anomalies in Down syndrome
    J Merrick
    Division for the Mentally Retarded, Ministry of Labour and Social Affairs, State of Israel, Jerusalem
    Downs Syndr Res Pract 6:131-3. 2001
    ..6% had mild, 7% moderate, 45% severe and 42% profound learning difficulty. 9% of the children had no refractive errors. A significant (P < 0...
  49. ncbi Principles of ray tracing aberrometry
    V V Molebny
    Institute of Biomedical Engineering, Kiev, Ukraine
    J Refract Surg 16:S572-5. 2000
    ..Ray tracing aberrometry developed by the Institute of Biomedical Engineering (Kiev) and first tested at the Vardinoyannion Eye Institute of Crete is a promising technique for eye refraction aberration and refraction mapping...
  50. pmc Moderate visual impairment in India: the Andhra Pradesh Eye Disease Study
    R Dandona
    International Centre for Advancement of Rural Eye Care, LV Prasad Eye Institute, Hyderabad, India
    Br J Ophthalmol 86:373-7. 2002
    ..To assess the prevalence and demographic associations of moderate visual impairment in the population of the southern Indian state of Andhra Pradesh...
  51. ncbi Ocular axial length and its associations in an adult population of central rural India: the Central India Eye and Medical Study
    Vinay Nangia
    Suraj Eye Institute, Nagpur, Maharashtra, India
    Ophthalmology 117:1360-6. 2010
    ..To investigate the normal distribution of axial length of the globe, which is a major measurement of the eye, and its associations with other ocular and systemic parameters...
  52. ncbi The GEnes in Myopia (GEM) study in understanding the aetiology of refractive errors
    Paul N Baird
    Centre for Eye Research Australia, University of Melbourne, Royal Victorian Eye and Ear Hospital, East Melbourne, Victoria, Australia
    Prog Retin Eye Res 29:520-42. 2010
    b>Refractive errors represent the leading cause of correctable vision impairment and blindness in the world with an estimated 2 billion people affected...
  53. ncbi Uncorrected refractive errors, presbyopia and spectacle coverage: results from a rapid assessment of refractive error survey
    Srinivas Marmamula
    L V Prasad Eye Institute, Banjara Hills, Hyderabad 500 034, India
    Ophthalmic Epidemiol 16:269-74. 2009
    To investigate the prevalence of uncorrected refractive errors, presbyopia and spectacle coverage in subjects aged 15-50 years using rapid assessment methodology in the Mahabubnagar district of Andhra Pradesh, India.
  54. ncbi Review of findings of the Andhra Pradesh Eye Disease Study: policy implications for eye-care services
    R Dandona
    International Centre for Advancement of Rural Eye Care, L V Prasad Eye Institute, Hyderabad, India
    Indian J Ophthalmol 49:215-34. 2001
    ..1 million and 31.6 million in 2010 and 2020 respectively, if the current trend continues. This review summarizes the findings of APEDS and discusses the implications of these data on the policy and planning of eye-care services...
  55. ncbi Visual morbidity due to inaccurate spectacles among school children in rural China: the See Well to Learn Well Project, report 1
    Mingzhi Zhang
    Joint Shantou International Eye Center, Shantou, People s Republic of China
    Invest Ophthalmol Vis Sci 50:2011-7. 2009
    ..The prevalence and visual impact of spectacle inaccuracy were studied among rural, secondary-school children, to determine the optimal timing for updating of refraction...
  56. ncbi Visual benefit of correcting higher order aberrations of the eye
    D Williams
    Center for Visual Science, University of Rochester, NY 14627, USA
    J Refract Surg 16:S554-9. 2000
    ..These results encourage the development of methods to correct higher order aberrations...
  57. ncbi The prevalence of refractive errors among adults in the United States, Western Europe, and Australia
    John H Kempen
    Johns Hopkins University School of Medicine, 550 N Broadway, Suite 700, Baltimore, MD 21205, USA
    Arch Ophthalmol 122:495-505. 2004
    To estimate the prevalence of refractive errors in persons 40 years and older.
  58. ncbi Refractive errors and strabismus in children with Ddown syndrome: a controlled study
    Arsen Akinci
    Department of Pediatric Ophthalmology, Diskapi Children s Hospital Ankara, Turkey
    J Pediatr Ophthalmol Strabismus 46:83-6. 2009
    To evaluate the prevalence of refractive errors, strabismus, nystagmus, and congenital cataract in children with Down syndrome and control subjects of similar age.
  59. ncbi Defocus-induced changes in ZENK expression in the chicken retina
    Michaela Bitzer
    Section for Neurobiology of the Eye, University Eye Hospital, Tubingen, Germany
    Invest Ophthalmol Vis Sci 43:246-52. 2002
    ..ZENK was previously found to change in correlation with the sign (+ or -) of imposed defocus, making it a potential candidate for regulation of the synthesis of growth factors involved in emmetropization...
  60. pmc Prevalence of refractive error in Singaporean Chinese children: the strabismus, amblyopia, and refractive error in young Singaporean Children (STARS) study
    Mohamed Dirani
    Singapore Eye Research Institute, Singapore
    Invest Ophthalmol Vis Sci 51:1348-55. 2010
    ..To determine the prevalence of refractive error types in Singaporean Chinese children aged 6 to 72 months...
  61. ncbi Refractive errors of medical students in Turkey: one year follow-up of refraction and biometry
    Sumru Onal
    Department of Ophthalmology, Marmara University School of Medicine, Istanbul, Turkey
    Optom Vis Sci 84:175-80. 2007
    This study was conducted to determine the prevalence of refractive errors in Turkish medical students as well as to determine the change in refractive status of medical students within 1 year...
  62. ncbi Prevalence and risk factors for refractive errors in the Singapore Malay Eye Survey
    Seang Mei Saw
    Department of Community, Occupational and Family Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
    Ophthalmology 115:1713-9. 2008
    To describe the prevalence and risk factors for myopia and other refractive errors in an urban Malay population in Singapore.
  63. ncbi Prevalence and associations of keratoconus in rural maharashtra in central India: the central India eye and medical study
    Jost B Jonas
    Suraj Eye Institute, Nagpur, Maharashtra, India
    Am J Ophthalmol 148:760-5. 2009
    ..To evaluate the prevalence and associated factors of keratoconus in the adult Indian population...
  64. pmc The prevalence of refractive errors among schoolchildren in Dezful, Iran
    Akbar Fotouhi
    Epidemiology and Biostatistics Department, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
    Br J Ophthalmol 91:287-92. 2007
    To determine the prevalence of refractive errors among schoolchildren in urban and rural areas of Dezful County, Iran.
  65. pmc Improving vision: neural compensation for optical defocus
    M Mon-Williams
    Department of Human Movement Studies, University of Queensland, St Lucia, Australia
    Proc Biol Sci 265:71-7. 1998
    ..The second set of experiments also provided some evidence of inter-ocular transfer, indicating that the adaptation process is occurring at binocular sites in the cortex...
  66. pmc Uncorrected refractive errors and spectacle utilisation rate in Tehran: the unmet need
    A Fotouhi
    Epidemiology and Biostatistics Department, School of Public Health, Tehran University of Medical Sciences, Iran
    Br J Ophthalmol 90:534-7. 2006
    ..To determine the prevalence of the met and unmet need for spectacles and their associated factors in the population of Tehran...
  67. ncbi Refractive error and biometry in older Chinese adults: the Liwan eye study
    Mingguang He
    State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat Sen University, Guangzhou, China
    Invest Ophthalmol Vis Sci 50:5130-6. 2009
    ..To assess the prevalence of refractive error and describe the distribution of ocular biometry and its association with refraction in adult Chinese...
  68. pmc Ocular morbidity in schoolchildren in Kathmandu
    B P Nepal
    BP Koirala Lions Center for Ophthalmic Studies, Institute of Medicine, Tribhuvan University, Kathmandu, Nepal
    Br J Ophthalmol 87:531-4. 2003
    ..Any information on eye diseases in schoolchildren in Nepal is rare and sketchy. A programme to provide basic eye screening to schoolchildren with an aim to provide services as well as gather information on ocular morbidity has been started...
  69. ncbi Prevalence and determinants of spectacle nonwear among rural Chinese secondary schoolchildren: the Xichang Pediatric Refractive Error Study Report 3
    Nathan Congdon
    Joint Shantou International Eye Center of Shantou University and Chinese University of Hong Kong, Hong Kong
    Arch Ophthalmol 126:1717-23. 2008
    ..To study spectacle wear among rural Chinese children...
  70. ncbi The age- and gender-specific prevalences of refractive errors in Tehran: the Tehran Eye Study
    Hassan Hashemi
    Farabi Eye Hospital, School of Medicine, Tehran University of Medical Sciences, Iran
    Ophthalmic Epidemiol 11:213-25. 2004
    To determine the age- and gender-specific prevalences of refractive errors in Tehran through a population-based study.
  71. ncbi Spectacle lens compensation in the pigmented guinea pig
    Marcus H C Howlett
    School of Psychology, Faculty of Science and Information Technology, The University of Newcastle, Australia
    Vision Res 49:219-27. 2009
    ..We conclude that in the guinea pig, ocular growth and refractive error are visually regulated in a bidirectional manner to plus and minus lenses, but that the eye responds in a graded manner to imposed effective hyperopic defocus...
  72. ncbi Characteristic ocular findings in Asian children with Down syndrome
    J H Kim
    Department of Ophthalmology, College of Medicine, Seoul National University and Clinical Research Institute Seoul National University Hospital, Seoul, Korea
    Eye (Lond) 16:710-4. 2002
    ..AIMS/PURPOSE: To identify the characteristic ocular findings in Asian children with Down syndrome...
  73. ncbi Ocular component data in schoolchildren as a function of age and gender
    Karla Zadnik
    The Ohio State University College of Optometry, Columbus, 43210 1240, USA
    Optom Vis Sci 80:226-36. 2003
    ..To describe the refractive error and ocular components of a large group of school-aged children as a function of age and gender...
  74. ncbi Biometry and intraocular lens power calculation
    Alexander C Lee
    Pepose Vision Institute, Department of Ophthalmology and Visual Sciences, Washington University School of Medicine, St Louis, Missouri 63017, USA
    Curr Opin Ophthalmol 19:13-7. 2008
    ..The article reviews recent studies and advances in the field of biometry and intraocular lens power calculations...
  75. ncbi Clinical ocular wavefront analyzers
    Alejandro Cervino
    School of Life and Health Sciences, Aston University, Birmingham, United Kingdom
    J Refract Surg 23:603-16. 2007
    ..To provide a summary of the methods used by clinical wavefront analyzers and their historical, current, and future applications...
  76. pmc Prevalence and risk factors for refractive errors: Korean National Health and Nutrition Examination Survey 2008-2011
    Eun Chul Kim
    Department of Ophthalmology and Visual Science, Buchon St Mary s Hospital, College of Medicine, Catholic University of Korea, Suwon, Korea
    PLoS ONE 8:e80361. 2013
    To examine the prevalence and risk factors of refractive errors in a representative Korean population aged 20 years old or older.
  77. ncbi Wavefront-guided laser epithelial keratomileusis with the wavelight concept system 500
    Christoph Winkler von Mohrenfels
    Rayne Institute, Department of Ophthalmology, St Thomas Hospital, London, UK
    J Refract Surg 20:S565-9. 2004
    ..50 diopters (D), without any unwanted side effects. After conventional refractive surgery, higher-order aberrations are induced. To reduce these aberrations, we used wavefront-guided ablation...
  78. ncbi Treatment of uncorrected refractive error improves vision-specific quality of life
    Anne L Coleman
    Department of Ophthalmology, Jules Stein Eye Institute, David Geffen School of Medicine, University of California Los Angeles, 100 Stein Plaza, Los Angeles, CA 90095, USA
    J Am Geriatr Soc 54:883-90. 2006
    To evaluate the benefit of eyeglasses and magnifiers in elderly patients with uncorrected refractive errors.
  79. ncbi Epidemiology of refractive errors and presbyopia
    Robert Alexander Weale
    Age Concern Institute of Gerontology, King s College London, University of London, London, United Kingdom
    Surv Ophthalmol 48:515-43. 2003
    ..The connection between refractive errors and ocular pathologies is reviewed, and possible means of preventing early onset myopia are examined...
  80. ncbi Prevalence of habitual refractive errors and anisometropia among Dutch schoolchildren and hospital employees
    Theo J W Hendricks
    Department of General Practice, Maastricht University, The Netherlands
    Acta Ophthalmol 87:538-43. 2009
    ..During the last few decades the prevalence of myopia has increased worldwide, especially in Asia. We investigated the prevalence of habitual RE and anisometropia in a Dutch population of children and employees...
  81. ncbi Prescribing spectacles in children: a pediatric ophthalmologist's approach
    Sean P Donahue
    Department of Ophthalmology, Vanderbilt University School of Medicine, Nashville, Tennessee, USA
    Optom Vis Sci 84:110-4. 2007
    ..Fortunately, the prescribing thresholds suggested by optometrists are quite similar to those suggested by pediatric ophthalmologists...
  82. ncbi Prescribing spectacles: reasons for failure of spectacle lens acceptance
    Patricia Hrynchak
    School of Optometry, University of Waterloo, Canada
    Ophthalmic Physiol Opt 26:111-5. 2006
    ..8%), transcription errors (1.6%) and other (4.5%). The frequency of failure to adapt to spectacle prescriptions is quite low and the most common reason for this failure is inaccuracy in the measurement of the refractive error...
  83. pmc Cone signals for spectacle-lens compensation: differential responses to short and long wavelengths
    Frances J Rucker
    Department of Biology, City College of New York, 138th Street and Convent Avenue, New York, NY 10031, USA
    Vision Res 48:1980-91. 2008
    ..The generally better lens compensation in white than monochromatic illumination suggests that longitudinal chromatic aberration may be used in lens compensation...
  84. pmc Interpreting the multifocal visual evoked potential: the effects of refractive errors, cataracts, and fixation errors
    B J Winn
    Department of Psychology, Columbia University, New York, NY 10027, USA
    Br J Ophthalmol 89:340-4. 2005
    To understand how refractive errors, cataracts, and fixation errors affect multifocal visual evoked potential (mfVEP) responses.
  85. ncbi The spatially resolved refractometer
    S A Burns
    Schepens Eye Research Institute, Boston, MA 02114, USA
    J Refract Surg 16:S566-9. 2000
    ..CONCLUSION: Calculation of a simple "optimal surgical shape" for wave-front guided refractive surgery will depend on improved understanding of the interplay between the biological and physical properties of the eye...
  86. ncbi An analysis of vision screening data from New York City public schools
    Marie I Bodack
    Cincinnati Children s Hospital, Cincinnati, Ohio 45229 3039, USA
    Optometry 81:476-84. 2010
    ..This study compares different vision screening batteries and documents the failure rates of different vision tests in children who receive periodic vision screenings...
  87. ncbi The influence of refractive errors on IOP measurement by rebound tonometry (ICare) and Goldmann applanation tonometry
    Teresio Avitabile
    Eye Clinic, University of Catania, via Clementi 36, Catania, 95154, Italy
    Graefes Arch Clin Exp Ophthalmol 248:585-91. 2010
    To evaluate the effect of refractive errors and central corneal thickness (CCT) on the measurement of intraocular pressure (IOP) by ICare rebound tonometer (RT), and its agreement with measurements by Goldmann applanation tonometer (GAT).
  88. ncbi Higher order aberrations in normal eyes measured with three different aberrometers
    Ahmet Z Burakgazi
    Department of Ophthalmology, Mount Sinai School of Medicine, New York, NY 10029, USA
    J Refract Surg 22:898-903. 2006
    ..To assess the repeatability of measurements of higher order aberrations using three different aberrometers and to compare higher order aberration measurements between optical path difference (OPD) scanning and the Hartmann-Shack method...
  89. ncbi Relationship between habitual refractive errors and headache complaints in schoolchildren
    Theo J W Hendricks
    Department of General Practice, University of Maastricht, The Netherlands
    Optom Vis Sci 84:137-43. 2007
    ..Refractive error (RE) is considered to be a possible cause for headaches. We aimed to gain insight into the relation between habitual RE (sphere and astigmatism) and headache complaints...
  90. ncbi Refractive error and ocular biometry in Jordanian adults
    Edward A H Mallen
    Department of Optometry, University of Bradford, Richmond Road, Bradford, West Yorkshire BD7 1DP, UK
    Ophthalmic Physiol Opt 25:302-9. 2005
    The aim of this study was to establish the prevalence of refractive errors in Jordanian adults of working age, and to study the ocular biometric correlates of refractive error in this population...
  91. ncbi Prevalence and risk factors of undercorrected refractive errors among Singaporean Malay adults: the Singapore Malay Eye Study
    Mohamad Rosman
    Singapore National Eye Center, Singapore
    Invest Ophthalmol Vis Sci 50:3621-8. 2009
    ..To describe the prevalence and the risk factors of undercorrected refractive error in an adult urban Malay population...
  92. ncbi The effect of under and over refractive correction on visual performance and spectacle lens acceptance
    D A Atchison
    Centre for Eye Research, School of Optometry, Queensland University of Technology, Australia
    Ophthalmic Physiol Opt 21:255-61. 2001
    ..In conclusion, the questionnaire findings support the need for both accurate monocular and binocular refractions. Subjects differed in their criteria for judging lens acceptability...
  93. ncbi Ocular aberrations measured by the Fourier-based WaveScan and Zernike-based LADARWave Hartmann-Shack aberrometers
    Stefanie Knapp
    Department of Ophthalmology, UT Southwestern Medical Center, Dallas, Texas 75390 9057, USA
    J Refract Surg 25:201-9. 2009
    ..To evaluate agreements in lower and higher order aberration measurements by two Hartmann-Shack wavefront-sensing devices...
  94. ncbi Revisions to tolerances in cylinder axis and in progressive addition lens power in ANSI Z80.1-2005
    William L Brown
    Division of Optometry, Department of Ophthalmology, Mayo Clinic, Rochester, Minnesota 55905, USA
    Optometry 77:343-9. 2006
    ..The recently approved ANSI Z80.1-2005 changes tolerances for cylinder axis for all ophthalmic lenses and for distance power for progressive addition lenses (PALs)...
  95. ncbi Prevalence and associated factors of refractive errors among type 2 diabetics in Kinmen, Taiwan
    Shih Jen Chen
    Community Medicine Research Center and Institute of Public Health, National Yang Ming University, Taipei, Taiwan
    Ophthalmic Epidemiol 15:2-9. 2008
    A community-based study was conducted to identify the extent of prevalence of refractive errors and their associated factors from among the Chinese type 2 diabetic population in Kinmen.
  96. ncbi Refractive errors and binocular dysfunctions in a population of university students
    D J Risovic
    Eye Clinic, Clinical Centre Zvezdara, Medical School Belgrade, Belgrade, Serbia
    Eur J Ophthalmol 18:1-6. 2008
    This clinical study was performed to determine the presence of refractive errors and binocular dysfunctions in a population of university students.
  97. ncbi The challenge of uncorrected refractive error: driving the agenda of the Durban Declaration on refractive error and service development
    Kovin S Naidoo
    International Centre for Eyecare Education, 272 Umbilo Road, Durban, South Africa
    Clin Exp Optom 93:131-6. 2010
    ....
  98. ncbi Knowledge and beliefs associated with refractive errors and undercorrection: the Singapore Malay Eye Study
    M Rosman
    Singapore National Eye Center, Singapore
    Br J Ophthalmol 93:4-10. 2009
    b>Refractive errors, especially if undercorrected, are a common and important cause of poor vision, particularly in Asia...
  99. pmc The hepatocyte growth factor receptor (MET) gene is not associated with refractive error and ocular biometrics in a Caucasian population
    M Schache
    Centre for Eye Research Australia, University of Melbourne, Royal Victorian Eye and Ear Hospital, Melbourne, Australia
    Mol Vis 15:2599-605. 2009
    ..The purpose of this study was to determine if genetic variants in the hepatocyte growth factor receptor (MET) gene are associated with refractive error and ocular biometric measures in a Caucasian cohort...
  100. ncbi Blindness and poverty: a tragic combination
    Brien A Holden
    Clin Exp Optom 90:401-3. 2007
  101. pmc Refractive predictability of partial coherence interferometry and factors that can affect it
    Seung Mo Kim
    Department of Ophthalmology, Seoul Veterans Hospital, Seoul, Korea
    Korean J Ophthalmol 23:6-12. 2009
    ..To evaluate the refractive predictability of a partial coherence interferometry (PCI) biometry device (IOL Master) for cataract surgery and to investigate factors that may affect it...

Research Grants63

  1. Role in Myopia Development of Retinal Pigment Epithelium - A New Therapeutic Targ
    Yan Zhang; Fiscal Year: 2013
    ..Myopia, or nearsightedness, is one of most common refractive errors in humans and significantly contributes to the global burden of eye disease...
  2. Aspheric SDOCT Imaging System for Dry Eye and Cornea Diagnostics
    ERIC L BUCKLAND; Fiscal Year: 2012
    ..the tear film, cornea, and other structures in th front of the eye that are associated with dry eye and refractive errors. Bioptigen is proposing the development of a new scanner for SDOCT systems that will enable high quality ..
  3. Preschool Vision Screening by Parental Risk Factor Questionnaire
    Ruth E Manny; Fiscal Year: 2013
    Vision disorders such as significant refractive errors, amblyopia, and strabismus impact the developing visual system of 2 to 5% of preschool children...
  4. Identification of quantitative ocular trait genes in the Beaver Dam Eye
    Alison P Klein; Fiscal Year: 2013
    ..The leading causes of visual impairment are cataract, glaucoma, uncorrected refractive errors, diabetic retinopathy and age-related macular degeneration...
  5. Ocular Drug Delivery Devices for Improved Postoperative Cataract Care
    Buddy D Ratner; Fiscal Year: 2010
    ..The newest lenses can correct refractive errors and some lenses are beginning to appear that have the potential to restore accommodation...
  6. Myopia: the role of cone opsin mutations &glasses that control axial elongation
    Jay Neitz; Fiscal Year: 2013
    ..Plan to "determine the etiology of human myopia and identify the risk factors associated with this and other refractive errors so as to prevent their occurrence or progression...
  7. Vision In Preschoolers - Hyperopia in Children (VIP-HIP)
    Marjean T Kulp; Fiscal Year: 2013
    ..guidelines are available for managing the many more children detected who have moderate to large hyperopic refractive errors without amblyopia or strabismus...
  8. Gene-environment-wide interaction studies of ocular refraction
    ROBERT J WOJCIECHOWSKI; Fiscal Year: 2013
    DESCRIPTION (provided by applicant): Refractive errors (myopia and hyperopia) are the most widespread human eye disorders. By the year 2020, one third of the world's population-over 2...
  9. Retinal circadian rhythms and refractive development
    RICHARD ALAN STONE; Fiscal Year: 2013
    DESCRIPTION (provided by applicant): Refractive errors are a major cause of visual impairment from optical defocus and are risk factors for retinal disorders, as well as for glaucoma and cataract...
  10. Binocular Vision, Amblyopia, and Refractive Development in Esotropia
    EILEEN ELIZABETH BIRCH; Fiscal Year: 2013
    ..signal that guides emmetropization, we will utilize an infant cohort that shares the distribution of initial refractive errors of normal infants but failsto undergo emmetropization during the first year of life;i.e...
  11. Electro-optic adaptive eyeglass for correction of presbyopia
    Guoqiang Li; Fiscal Year: 2013
    ..For example, a single lens of this kind can be used as a new phoropter to measure the refractive errors and visual acuity and for rapid depth scanning in three-dimensional biomedical imaging...
  12. EPIKERATOPHAKIA: THE SURGICAL CORRECTION OF APHAKIA
    MARGUERITE MC DONALD; Fiscal Year: 1991
    ..large corrections can be obtained in young infants to prevent amblyopia and in adult patients with other refractive errors. Epikeratophakia meets many of the requirements for satisfactory correction of aphakia: safety, technical ..
  13. OPTICALLY INDUCED ANISOMETROPIA
    Earl L Smith; Fiscal Year: 2013
    ..reasons not currently understood, a significant and increasing proportion of the population develop abnormal refractive errors. The long-term goal of our research program is to provide a better understanding of the etiology of common ..
  14. Adjustable Injectable Intraocular Lens
    Shiao Chang; Fiscal Year: 2004
    ..function but would also provide for precise, accurate and permanent correction of spherical and cylindrical refractive errors to enable the patient to be spectacle-free...
  15. Novel Corneal Implant Materials
    Shiao Chang; Fiscal Year: 2006
    ..vision, diffuse lamellar keratitis, dry eye, and inability to correct predictably large hyperopic and myopic refractive errors. Furthermore, by virtue of removing corneal tissue, these procedures are non-reversible...
  16. EXCIMER LASER ABLATION TO CORRECT REFRACTIVE ERROR
    MARGUERITE MC DONALD; Fiscal Year: 1991
    ..and efficacy of excimer laser ablation to alter the anterior curvature of the cornea for the correction of refractive errors. The specific aims are 1) to test, in non-human primate eyes, the results of central corneal sculpting with ..
  17. P AERUGINOSA EXOPROTEINS AND OCULAR INFECTIVITY
    JEFFERY HOBDEN; Fiscal Year: 2000
    ..About 24 million people in the U.S. wear contact lenses for cosmetic correction of refractive errors; 1 in 4,000 users of daily-wear soft contact lenses and 1 in 350 users of extended-wear contact lenses will ..
  18. Adjustable Phakic Intraocular Lens
    Shiao Chang; Fiscal Year: 2003
    ..LASIK has been highly successful for hyperopia and myopia up to approximately 10 D, the correction of larger refractive errors has had limited success because of the need to ablate excessive corneal tissue...
  19. Shack-Hartmann Corneal Topographer and Aberrometer
    DANIEL NEAL; Fiscal Year: 2005
    ..This optical description will include not only the routine refractive errors of myopia, hyperopia, and astigmatism normally measured by present day optometers and corneal topographers, ..
  20. Adaptive Optics Imager for Study of Pediatric Retinal Disorders
    Anne Fulton; Fiscal Year: 2009
    ..investigate the eyes in pediatric subjects with a history of preterm birth (Fulton, VanderVeen, Leviton) and refractive errors in a primate model (Troilo)...
  21. Shack-Hartman Corneal Topographer and Aberrometer
    Larry Thibos; Fiscal Year: 2002
    ..This optical description will include not only the routine refractive errors of defocus and astigmatism normally measured by present-day optometers and corneal topographers, but will ..
  22. POST-OPERATIVE ADJUSTMENT OF INTRAOCULAR LENS POWER
    CHRISTIAN SANDSTEDT; Fiscal Year: 2000
    ..Since more than 50% of cataract surgery patients have refractive errors requiring post-operative correction with spectacles, this Lens will enable these patients to predictably ..
  23. INTRACORNEAL LENS FOR THE CORRECTION OF HYPEROPIA
    ALOK NIGAM; Fiscal Year: 2000
    ..Anamed is developing the application of these materials for intracorneal lens to permanently correct refractive errors, specifically hyperopia from +1 to +6 D. There is no permanent solution for hyperopia today...
  24. ULTRASONIC SYSTEM FOR OCULAR VISUALIZATION AND BIOMETRY
    GEORGE WISEMAN; Fiscal Year: 2003
    ..2) select the appropriate type and size of recently developed intra-ocular lenses (IOL) to correct refractive errors or restore vision following cataract surgery; and, 3) document causes of undesired side-effects following ..
  25. LASER SYSTEM FOR PHOTOTHERMAL INTRASTROMAL KERATOPLASTY
    LEIF FREDIN; Fiscal Year: 1991
    ..a laser system that is suitable for performing photothermal intrastromal keratoplasty to correct ocular refractive errors. Laser parameters (wavelength, irradiance, and irradiation time) and delivery/geometry parameters (beam ..
  26. INTRACORNEAL LENS FOR THE CORRECTION OF HYPEROPIA
    ALOK NIGAM; Fiscal Year: 2003
    Anamed has developed PermaVisionr intracorneal implants for the correction of refractive errors, specifically, hyperopia from +1D to +6D...
  27. Adjustable Phakic Intraocular Lens
    Shiao Chang; Fiscal Year: 2007
    ..Using the Company's proprietary technology, any residual spherical or cylindrical refractive errors can be corrected post-operatively in a simple, non-invasive procedure to insure the phakic IOL patient ..
  28. SPATIALLY RESOLVED OPTOMETER FOR HUMAN EYES
    Larry Thibos; Fiscal Year: 1999
    ..Such an optometer will determine not only the routine refractive errors of defocus and astigmatism normally measured by clinical optometers, but will also determine the higher-..
  29. NEURAL CONTROL OF OCULAR GROWTH AND REFRACTION
    WILLIAM STELL; Fiscal Year: 2002
    ..The significance is that this new knowledge of cellular and intercellular regulatory messengers will suggest novel molecular targets for preventing refractive disorders, especially those that seriously threaten sight. ..
  30. THERAPEUTIC CORRECTION OF HYPEROPIA WITH EXCIMER PRK
    WILLIAM TELFAIR; Fiscal Year: 1993
    ..I VISX developed hardware and software for an excimer laser system that enables it to correct hyperopic refractive errors. The potential market for such a system includes many people with hyperopia that cannot be corrected with ..
  31. Postoperative Adjustment of Intraocular Lens Power
    Shiao Chang; Fiscal Year: 2002
    ..LAL is an IOL whose power can be precisely adjusted with light 2-4 weeks after cataract surgery to correct refractive errors such as tilt, power, and astigmatism which may have been induced by the procedure or through subsequent ..
  32. ANALYSIS OF MULTIPLE RISK FACTORS IN THE ETIOLOGY OF MYOPIA IN CHILDREN
    Jane E Gwiazda; Fiscal Year: 2010
    ..to "determine the etiology of myopia in humans, identify the risk factors associated with myopia and other refractive errors, and identify the biochemical pathways associated with the control of eye growth...
  33. INSTRUMENT FOR OBJECTIVE MEAS. OF CONTRAST SENSITIVITY
    Peter Magnante; Fiscal Year: 1990
    ..will reveal the relative extent to which entoptic scattering (strongly wavelength dependent) and ocular refractive errors (not strongly wavelength dependent) contribute to the patient's contrast sensitivity functions...
  34. DEVELOPMENT OF THE VEP TO LUMINANCE MODULATION
    RICHARD SREBRO; Fiscal Year: 1991
    ..The test is simple to conduct, requires only 43 secs of data collection to test an eye, is not affected by refractive errors or accommodation, and requires minimal cooperation from the infant subject...
  35. OPTIMAL CORNEAL SHAPE
    Leo Carney; Fiscal Year: 1990
    ..This, in addition to its accessibility, has made it an attractive site for manipulating refractive errors. In excess of 11 million Americans have amounts of myopia requiring optical correction; many have the desire ..
  36. OPTICAL AND RETINAL LIMITS TO HUMAN VISUAL PERFORMANCE
    Larry N Thibos; Fiscal Year: 2010
    ..Project 6. Develop a new concept of wavefront tomography to characterize the 3-dimensional structure of the eye's optical system from a series of wavefront measurements along multiple lines-of-sight. ..
  37. CORNEAL SURGERY WITH FEMTOSECOND LASERS
    Tibor Juhasz; Fiscal Year: 2000
    ..and it will provide a more effective, safe, and affordable means of correcting a wide variety of ocular refractive errors. Proposed commercial applications: The results of this research will lead to specifications of an advanced ..
  38. EYE GROWTH DURING INFANCY
    Scott Lambert; Fiscal Year: 2001
    ..process can become deranged in certain conditions resulting in excessive or retarded axial growth and large refractive errors. This project seeks to elucidate the molecular mechanisms responsible for the physiological processes that ..
  39. Molecular Characterization of Chick Retina during Refractive Development
    RICHARD ALAN STONE; Fiscal Year: 2010
    ..e., normal refraction) or for refractive errors has remained elusive, and clinically acceptable therapies that either prevent myopia onset or meaningfully ..
  40. CONTACT LENSES AND MYOPIA (CLAMP) STUDY
    JEFFREY WALLINE; Fiscal Year: 2003
    ..The CLAMP Study is the ideal scope and size of study to train Dr. Walline to become an independent investigator and has the potential to change the standard of care for young children who become nearsighted. ..
  41. COLLABORATIVE LONGITUDINAL EVALUATION KERATOCONUS STUDY
    Karla Zadnik; Fiscal Year: 2004
    ..Louis, Missouri, and the CLEK Photography Reading Center at The Ohio State University College of Optometry, Columbus, Ohio. ..
  42. COLLABORATIVE INITIAL GLAUCOMA TREATMENT STUDY
    Rohit Varma; Fiscal Year: 2003
    ....
  43. OMEGA-3 FATTY ACIDS IN NORMAL VISUAL DEVELOPMENT
    Eileen Birch; Fiscal Year: 2003
    ..By relating long-term outcomes to visual cortical function during infancy, we will directly evaluate the predictive of early visual tests for long-term cognitive outcomes. ..
  44. ABERRATIONS OF EYES IN NORMAL AND CLINICAL POPULATIONS
    Raymond A Applegate; Fiscal Year: 2010
    ..abstract_text> ..
  45. mRNA expression by RPE cells in myopia
    Richard Stone; Fiscal Year: 2006
    Much evidence indicates that the retina largely regulates eye growth and the development of refractive errors, but the identity of both the cellular pathways and the molecular components of the signaling cascade by which the retina ..
  46. OPTOMETRY COORDINATING CENTER
    Karla Zadnik; Fiscal Year: 2002
    ....
  47. MYOPIA AND OCULAR GROWTH--NEURAL MECHANISMS
    Richard Stone; Fiscal Year: 2004
    ..and/or pharmacological mechanisms regulating postnatal ocular growth and influencing the development of refractive errors, particularly myopia (nearsightedness)...
  48. Development and Maintenance of Binocular Vision (EY005236)
    EILEEN ELIZABETH BIRCH; Fiscal Year: 2010
    ....
  49. CLINICAL RESEARCH CURRICULUM
    Karla Zadnik; Fiscal Year: 2004
    ..abstract_text> ..
  50. Computer-Aided Interpretation of Oculometric Data
    Michael Smolek; Fiscal Year: 2006
    ..For patients, refractive surgery outcomes will be more predictable, and they will benefit from earlier detection of diseases such as cataracts and corneal ectasias. ..
  51. Vision Research--Biostatistics and Epidemiology Module
    Karla Zadnik; Fiscal Year: 2007
    ..abstract_text> ..
  52. OCULAR DEVELOPMENT IN INFANCY/EARLY CHILDHOOD
    Donald Mutti; Fiscal Year: 2005
    ..abstract_text> ..
  53. Multi-Resolution Corneal Topography (MRCT)
    EDWIN SARVER; Fiscal Year: 2006
    ..research grant ..
  54. Scanning Ocular Aberration Measurement (SAM) System
    EDWIN SARVER; Fiscal Year: 2007
    ..In addition, the ability to measure these aberrations dynamically while the eye is changing focus from a distant to a near object will be provided. [unreadable] [unreadable] [unreadable] [unreadable]..
  55. Subjective Refraction by Meridional Power Matching
    EDWIN SARVER; Fiscal Year: 2002
    ..Technological Innovation: Providing an accurate, low-cost, low-maintenance refractor that can be easily transported and used in hostile environments. PROPOSED COMMERCIAL APPLICATION: NOT AVAILABLE ..
  56. Snapshot Retinal Imaging Polarimeter
    James Schwiegerling; Fiscal Year: 2007
    ..Furthermore, the device could potentially be a low-cost add-on to existing fundus cameras, allowing a more widespread utility than existing devices. [unreadable] [unreadable]..
  57. NEURAL AND HORMONAL PATHWAYS IN OCULAR DEVELOPMENT
    Howard Howland; Fiscal Year: 2003
    ..Behavioral, surgical, biochemical, histological, and mathematical methods will be employed to answer these questions. ..
  58. Preschool Vision Screening in Primary Care Settings
    Alex Kemper; Fiscal Year: 2007
    ....
  59. OPTICAL AND NEURAL FACTORS IN NIGHT VISION
    NANCY COLETTA; Fiscal Year: 2002
    ..Differences in the sampling rate may responsible for the meridional variation in sensitivity. ..
  60. Low-Coherence Wavefront Sensor for AO Imaging in Rodent Eyes
    R Ferguson; Fiscal Year: 2008
    ..We propose to show that this device is complementary to the Shack-Hartmann device with a dual mode test system in well-characterized phantom eyes. ..
  61. Retinal Tracking for Enhances OCT Imaging
    R Ferguson; Fiscal Year: 2004
    ..Adjacent 2-D scans can be concatenated into 3-D data sets. Standard resolution and high resolution TOCT systems will be assembled and tested in clinical studies at New England Eye Center. ..
  62. Optical Measurement of Choroid to Photoreceptor Distance
    DANIEL NEAL; Fiscal Year: 2002
    ..Medical practice is anticipated to benefit through advancements in automated refraction techniques. ..