corneal topography

Summary

Summary: Measurement of the anterior surface of the cornea, its curvature and shape. It is used often to diagnose keratoconus and other corneal diseases, and corneal changes after keratotomy and keratoplasty. A significant application is in the fitting of contact lenses. In performing corneal topography, many different techniques can be employed: keratometry, keratoscopy, photokeratoscopy, profile photography, computer-assisted image processing, videokeratography, etc.

Top Publications

  1. ncbi Keratoconus
    Y S Rabinowitz
    Cornea Genetic Eye Medical Clinic, Burns and Allen Research Institute, Cedars Sinai Medical Center, Los Angeles, California, USA
    Surv Ophthalmol 42:297-319. 1998
  2. pmc Keratoconus diagnosis with optical coherence tomography pachymetry mapping
    Yan Li
    Center for Ophthalmic Optics and Lasers, Doheny Eye Institute and Department of Ophthalmology, Keck School of Medicine of the University of Southern California, Los Angeles, California 99033, USA
    Ophthalmology 115:2159-66. 2008
  3. ncbi Correcting keratoconus with intracorneal rings
    J Colin
    Brest University Hospital, Brest, France
    J Cataract Refract Surg 26:1117-22. 2000
  4. ncbi Keratoconus detection using corneal topography
    Jack T Holladay
    Baylor College of Medicine, Houston, TX, USA
    J Refract Surg 25:S958-62. 2009
  5. ncbi INTACS inserts for treating keratoconus: one-year results
    J Colin
    Bordeaux University Hospital, Hopital Pellegrin, Bordeaux, France
    Ophthalmology 108:1409-14. 2001
  6. ncbi Corneal higher order aberrations: a method to grade keratoconus
    Jorge L Alio
    VISSUM Instituto Oftalmologico de Alicante, Spain
    J Refract Surg 22:539-45. 2006
  7. ncbi Comparison of single-segment and double-segment Intacs for keratoconus and post-LASIK ectasia
    Munish Sharma
    Boxer Wachler Vision Institute, 465 North Roxbury Drive, Beverly Hills, CA 90210, USA
    Am J Ophthalmol 141:891-5. 2006
  8. ncbi Topography-driven excimer laser for the retreatment of decentralized myopic photorefractive keratectomy
    G Alessio
    Clinica Oculistica, Department of Otorhinolaryngology and Ophthalmology, University of Bari, Bari, Italy
    Ophthalmology 108:1695-703. 2001
  9. ncbi Modified intracorneal ring segment implantations (INTACS) for the management of moderate to advanced keratoconus: efficacy and complications
    A John Kanellopoulos
    Department of Ophthalmology, New York University Medical School, New York, New York, USA
    Cornea 25:29-33. 2006
  10. ncbi Evaluation of the Lenstar LS 900 non-contact biometer
    L P J Cruysberg
    Department of Ophthalmology, University Hospital Maastricht, P Debyelaan 25, 6202 AZ, Maastricht, The Netherlands
    Br J Ophthalmol 94:106-10. 2010

Detail Information

Publications282 found, 100 shown here

  1. ncbi Keratoconus
    Y S Rabinowitz
    Cornea Genetic Eye Medical Clinic, Burns and Allen Research Institute, Cedars Sinai Medical Center, Los Angeles, California, USA
    Surv Ophthalmol 42:297-319. 1998
    ..It has well-described clinical signs, but early forms of the disease may go undetected unless the anterior corneal topography is studied. Early disease is now best detected with videokeratography...
  2. pmc Keratoconus diagnosis with optical coherence tomography pachymetry mapping
    Yan Li
    Center for Ophthalmic Optics and Lasers, Doheny Eye Institute and Department of Ophthalmology, Keck School of Medicine of the University of Southern California, Los Angeles, California 99033, USA
    Ophthalmology 115:2159-66. 2008
    ..To detect abnormal corneal thinning in keratoconus using pachymetry maps measured by high-speed anterior segment optical coherence tomography (OCT)...
  3. ncbi Correcting keratoconus with intracorneal rings
    J Colin
    Brest University Hospital, Brest, France
    J Cataract Refract Surg 26:1117-22. 2000
    ..To evaluate the potential of intrastromal corneal ring technology (Intacs, KeraVision) to correct keratoconus without central corneal scarring...
  4. ncbi Keratoconus detection using corneal topography
    Jack T Holladay
    Baylor College of Medicine, Houston, TX, USA
    J Refract Surg 25:S958-62. 2009
    ..PURPOSETo review the topographic patterns associated with keratoconus suspects and provide criteria for keratoconus screening...
  5. ncbi INTACS inserts for treating keratoconus: one-year results
    J Colin
    Bordeaux University Hospital, Hopital Pellegrin, Bordeaux, France
    Ophthalmology 108:1409-14. 2001
    ..The corneal steepening and astigmatism associated with keratoconus were reduced, and visual acuity was improved with treatment in almost all eyes...
  6. ncbi Corneal higher order aberrations: a method to grade keratoconus
    Jorge L Alio
    VISSUM Instituto Oftalmologico de Alicante, Spain
    J Refract Surg 22:539-45. 2006
    ..To use the anterior corneal surface higher order aberrations as a tool to detect and grade keratoconus using corneal map analysis videokeratoscopy...
  7. ncbi Comparison of single-segment and double-segment Intacs for keratoconus and post-LASIK ectasia
    Munish Sharma
    Boxer Wachler Vision Institute, 465 North Roxbury Drive, Beverly Hills, CA 90210, USA
    Am J Ophthalmol 141:891-5. 2006
    ..To evaluate the efficacy of single-segment Intacs and compare with double-segment Intacs in subjects with post-LASIK ectasia and keratoconus...
  8. ncbi Topography-driven excimer laser for the retreatment of decentralized myopic photorefractive keratectomy
    G Alessio
    Clinica Oculistica, Department of Otorhinolaryngology and Ophthalmology, University of Bari, Bari, Italy
    Ophthalmology 108:1695-703. 2001
    ..CONCLUSIONS: The combination of topographic data with computer controlled flying-spot excimer laser ablation is a suitable solution for correcting irregular astigmatism after postmyopic PRK decentrations...
  9. ncbi Modified intracorneal ring segment implantations (INTACS) for the management of moderate to advanced keratoconus: efficacy and complications
    A John Kanellopoulos
    Department of Ophthalmology, New York University Medical School, New York, New York, USA
    Cornea 25:29-33. 2006
    ..To evaluate the safety and efficacy of modified intracorneal ring segment implantation (INTACS) in the management of moderate and advanced keratoconus (KCN)...
  10. ncbi Evaluation of the Lenstar LS 900 non-contact biometer
    L P J Cruysberg
    Department of Ophthalmology, University Hospital Maastricht, P Debyelaan 25, 6202 AZ, Maastricht, The Netherlands
    Br J Ophthalmol 94:106-10. 2010
    ..Evaluation of the reproducibility of the Lenstar LS 900 non-contact biometer, and a comparison with the Visante anterior-segment optical coherence tomography (AS-OCT) and the IOLMaster...
  11. ncbi Complication and failure rates after corneal crosslinking
    Tobias Koller
    From Institut für Refraktive und Ophthalmo Chirurgie, Zurich, Switzerland
    J Cataract Refract Surg 35:1358-62. 2009
    ..To evaluate the complication rate of corneal crosslinking (CXL) for primary keratectasia and to develop recommendations for avoiding complications...
  12. ncbi Corneal ectasia after LASIK despite low preoperative risk: tomographic and biomechanical findings in the unoperated, stable, fellow eye
    Renato Ambrosio
    Instituto de Olhos Renato Ambrosio, Rio de Janeiro, Brazil
    J Refract Surg 26:906-11. 2010
    ....
  13. ncbi Collagen cross-linking (CCL) with sequential topography-guided PRK: a temporizing alternative for keratoconus to penetrating keratoplasty
    A John Kanellopoulos
    Laservision gr Institute, Athens, Greece
    Cornea 26:891-5. 2007
    ..To assess the effectiveness of ultraviolet A (UVA) irradiation-induced collagen cross-linking (CCL) on keratoconus (KC) progression...
  14. ncbi Repeatability of automatic measurements by a new Scheimpflug camera combined with Placido topography
    Giacomo Savini
    GB Bietti Eye Foundation IRCCS, Rome, Italy
    J Cataract Refract Surg 37:1809-16. 2011
    To assess the repeatability of anterior segment measurements performed by a Scheimpflug camera combined with Placido corneal topography (Sirius) in unoperated, post-refractive surgery, and keratoconus eyes.
  15. ncbi Novel pachymetric parameters based on corneal tomography for diagnosing keratoconus
    Renato Ambrosio
    Instituto de Olhos Renato Ambrosio, Rio de Janeiro, Brazil
    J Refract Surg 27:753-8. 2011
    ....
  16. ncbi One-year visual outcomes and patient satisfaction after surgical correction of presbyopia with an intracorneal inlay of a new design
    Alois K Dexl
    University Eye Clinic, Paracelsus Medical University, Salzburg, Austria
    J Cataract Refract Surg 38:262-9. 2012
    ..To evaluate the safety and efficacy of the third-generation Kamra corneal inlay (ACI 7000PDT) implanted monocularly in corneal pockets of emmetropic presbyopic patients to improve near and intermediate vision...
  17. ncbi Prevalence and associated factors of keratoconus in Jerusalem: a cross-sectional study
    Michel Millodot
    School of Optometry and Vision Sciences, Cardiff University, Cardiff, UK
    Ophthalmic Epidemiol 18:91-7. 2011
    ..To determine the prevalence and associated factors for keratoconus in a college student population sample in Jerusalem...
  18. ncbi Corneal thickness changes after corneal collagen crosslinking for keratoconus and corneal ectasia: one-year results
    Steven A Greenstein
    Cornea and Laser Eye Institute Hersh Vision Group, CLEI Center for Keratoconus, Teaneck, New Jersey 07666, USA
    J Cataract Refract Surg 37:691-700. 2011
    ..To determine the changes in corneal thickness over time after corneal collagen crosslinking (CXL) for keratoconus and corneal ectasia...
  19. ncbi Mapping collagen organization in the human cornea: left and right eyes are structurally distinct
    Craig Boote
    Structural Biophysics Group, School of Optometry and Vision Sciences, Cardiff University, Cardiff, Wales, United Kingdom
    Invest Ophthalmol Vis Sci 47:901-8. 2006
    ..The present study was designed to examine and compare the organization of collagen fibrils in the corneal stroma of left and right eyes...
  20. ncbi Intacs in advanced keratoconus
    Rohit Shetty
    Cornea and Refractive Surgery Service, Narayana Nethralaya, Postgraduate Institute of Ophthalmology, Bangalore, India
    Cornea 27:1022-9. 2008
    ..To evaluate the surgical outcomes of microthin intracorneal ring segment (INTACS) implantation in advanced keratoconus...
  21. pmc Epithelial thickness in the normal cornea: three-dimensional display with Artemis very high-frequency digital ultrasound
    Dan Z Reinstein
    London Vision Clinic, London, United Kingdom
    J Refract Surg 24:571-81. 2008
    ..To characterize the in vivo epithelial thickness profile in a population of normal eyes...
  22. ncbi Corneal thickness indices discriminate between keratoconus and contact lens-induced corneal thinning
    Stephen C Pflugfelder
    Ocular Surface Center, Cullen Eye Institute, Baylor College of Medicine, Houston, Texas 77030, USA
    Ophthalmology 109:2336-41. 2002
    To evaluate two indices generated from measurements obtained from the Orbscan Corneal Topography System (CTS; Orbscan, Inc., Salt Lake City, UT) to distinguish contact lens-induced corneal thinning from keratoconus...
  23. ncbi Anterior segment biometry with the Pentacam: comprehensive assessment of repeatability of automated measurements
    Hema Shankar
    Department of Ophthalmology, Flinders Medical Centre, Bedford Park, South Australia, Australia
    J Cataract Refract Surg 34:103-13. 2008
    ..To comprehensively assess the reliability of automated Pentacam (Oculus, Inc.) measurements...
  24. ncbi Use of anterior segment optical coherence tomography to study corneal changes after collagen cross-linking
    Muriel Doors
    Department of Ophthalmology, University Medical Center Maastricht, Maastricht, The Netherlands
    Am J Ophthalmol 148:844-51.e2. 2009
    ..To investigate the stromal demarcation line after corneal cross-linking using anterior segment optical coherence tomography (AS-OCT) and its influence on the short-term results of cross-linking in patients with progressive keratoconus...
  25. ncbi Corneal collagen crosslinking for keratoconus and corneal ectasia: One-year results
    Peter S Hersh
    Cornea and Laser Eye Institute Hersh Vision Group, CLEI Center for Keratoconus, Teaneck, New Jersey 07666, USA
    J Cataract Refract Surg 37:149-60. 2011
    ..To evaluate 1-year outcomes of corneal collagen crosslinking (CXL) for treatment of keratoconus and corneal ectasia...
  26. ncbi Changes in corneal topography after 25-gauge transconjunctival sutureless vitrectomy versus after 20-gauge standard vitrectomy
    F Okamoto
    Department of Ophthalmology, Institute of Clinical Medicine, University of Tsukuba, Ibaraki, Japan
    Ophthalmology 114:2138-41. 2007
    ..To evaluate the changes in regular and irregular corneal astigmatism after 25-gauge transconjunctival sutureless vitrectomy and 20-gauge standard vitrectomy...
  27. ncbi Intracorneal rings to correct corneal ectasia after laser in situ keratomileusis
    Jorge Alio
    Refractive Surgery and Cornea Unit, Alicante Institute of Ophthalmology, and Miguel Hernández University School of Medicine, Alicante, Spain
    J Cataract Refract Surg 28:1568-74. 2002
    ..To evaluate the potential of using intrastromal corneal ring technology (Intacs, KeraVision) to correct posterior ectasia after laser in situ keratomileusis (LASIK) for myopia...
  28. ncbi Intracorneal ring segments for keratoconus correction: long-term follow-up
    Jorge L Alio
    Department of Cornea and Refractive Surgery, Instituto Oftalmologico de Alicante, VISSUM, Spain
    J Cataract Refract Surg 32:978-85. 2006
    ..To evaluate long-term results and stability of intracorneal ring segment (Intacs) implantation for keratoconus correction...
  29. ncbi A new intraocular lens design to reduce spherical aberration of pseudophakic eyes
    Jack T Holladay
    Baylor College of Medicine, Holladay LASIK Institute, Houston, TX, USA
    J Refract Surg 18:683-91. 2002
    ..The aim of this study was to design and evaluate in the laboratory a new intraocular lens (IOL) intended to provide superior ocular optical quality by reducing spherical aberration...
  30. ncbi Repeatability and reproducibility of central corneal thickness measurement with Pentacam, Orbscan, and ultrasound
    Birgit Lackner
    Department of Ophthalmology, Medical University of Vienna, Vienna, Austria
    Optom Vis Sci 82:892-9. 2005
    ....
  31. ncbi Reliability and repeatability of the Pentacam on corneal curvatures
    Davie Chen
    School of Optometry, The Hong Kong Polytechnic University, Hung Hom, Hong Kong SAR, China
    Clin Exp Optom 92:110-8. 2009
    ..on the simulated keratometry readings (Sim K) and peripheral corneal curvatures (PCC) at both the anterior and posterior corneal surfaces...
  32. ncbi Analysis of results related to good and bad outcomes of Intacs implantation for keratoconus correction
    Jorge L Alio
    Instituto Oftalmologico de Alicante, Vissum Department of Cornea and Refractive Surgery, Miguel Hernandez University, Medical School, Alicante, Spain
    J Cataract Refract Surg 32:756-61. 2006
    ..To evaluate factors influencing good and poor outcomes after intracorneal ring segment implantation to correct keratoconus...
  33. ncbi Management of corneal ectasia after LASIK with combined, same-day, topography-guided partial transepithelial PRK and collagen cross-linking: the athens protocol
    Anastasios John Kanellopoulos
    Laservision gr Institute, Athens, Greece
    J Refract Surg 27:323-31. 2011
    ....
  34. ncbi Corneal topography indices after corneal collagen crosslinking for keratoconus and corneal ectasia: one-year results
    Steven A Greenstein
    Cornea and Laser Eye Institute Hersh Vision Group, CLEI Center for Keratoconus, Teaneck, New Jersey, USA
    J Cataract Refract Surg 37:1282-90. 2011
    To evaluate changes in corneal topography indices after corneal collagen crosslinking (CXL) in patients with keratoconus and corneal ectasia and analyze associations of these changes with visual acuity.
  35. ncbi Optics of the average normal cornea from general and canonical representations of its surface topography
    Rafael Navarro
    Instituto de Ciencia de Materiales de Aragon, Consejo Superior de Investigaciones Cientificas Universidad de Zaragoza, Plaza San Francisco s n, 50009 Zaragoza, Spain
    J Opt Soc Am A Opt Image Sci Vis 23:219-32. 2006
    Generally, the analysis of corneal topography involves fitting the raw data to a parametric geometric model that includes a regular basis surface, plus some sort of polynomial expansion to adjust the more irregular residual component...
  36. ncbi Femtosecond laser-assisted corneal pocket creation using a mask for inlay implantation
    Dimitrios I Bouzoukis
    Institute of Vision and Optics, University of Crete, Greece
    J Refract Surg 27:818-20. 2011
    ....
  37. ncbi What's in a name: keratoconus, pellucid marginal degeneration, and related thinning disorders
    Michael W Belin
    University of Arizona Department of Ophthalmology and Vision Science, Tucson, AZ 85658 4741, USA
    Am J Ophthalmol 152:157-162.e1. 2011
    ..To discuss the implications of the current nomenclature and use of current diagnostic modalities on the classification and treatment of pellucid marginal degeneration and keratoconus...
  38. ncbi One or 2 Intacs segments for the correction of keratoconus
    Jorge L Alio
    VISSUM Instituto Oftalmologico de Alicante, Refractive Surgery and Cornea Department, Miguel Hernandez University, 03016 Alicante, Spain
    J Cataract Refract Surg 31:943-53. 2005
    ..1 or 2 intracorneal rings (Intacs, KeraVision) as a device to correct, stabilize, and/or improve the best corrected visual acuity in patients with clear cornea keratoconus oriented by the preoperative corneal topography pattern.
  39. ncbi Rose-K contact lens for keratoconus
    Arun K Jain
    Department of Ophthalmology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
    Indian J Ophthalmol 55:121-5. 2007
    ..To report clinical experience and the comparative value of axial and instantaneous topography data in fitting Rose-K design contact lenses in moderate and severe keratoconus...
  40. ncbi Transepithelial, Topography-guided Ablation in the Treatment of Visual Disturbances in LASIK Flap or Interface Complications
    Xiangjun Chen
    SynsLaser Kirurgi AS, Tromsø, Norway
    J Refract Surg 28:120-6. 2012
    ....
  41. ncbi Intacs for early pellucid marginal degeneration
    George D Kymionis
    Vardinoyannion Eye Institute of Crete, University of Crete, Heraklion, Crete, Greece
    J Cataract Refract Surg 30:230-3. 2004
    ..Corneal topographic pattern also improved. Although the results are encouraging, concern still exists regarding the long-term effect of this approach for the management of patients with PMD...
  42. ncbi Optical aberrations of the human anterior cornea
    Li Wang
    Cullen Eye Institute, Baylor College of Medicine, Department of Ophthalmology, Houston, Texas 77030, USA
    J Cataract Refract Surg 29:1514-21. 2003
    ..to evaluate the symmetry of anterior corneal aberrations between right and left eyes of individuals; and (3). to study the variations in anterior corneal aberrations with aging...
  43. ncbi Intrastromal corneal ring segments for advanced keratoconus and cases with high keratometric asymmetry
    Mohammad I Khan
    Singleton Hospital Abertawe Bro Morgannwg University NHS Trust, Swansea, United Kingdom
    J Cataract Refract Surg 38:129-36. 2012
    ..To report the safety and efficacy of intrastromal corneal ring segment (ICRS) implantation to manage keratoconus...
  44. pmc Effects of multicurve RGP contact lens use on topographic changes in keratoconus
    Joon Seo Hwang
    Department of Ophthalmology, Haenam Genenral Hospital, Jeonnam, Korea
    Korean J Ophthalmol 24:201-6. 2010
    ..To evaluate the effects of wearing rigid gas permeable (RGP) contact lenses on the topographic changes in keratoconus...
  45. ncbi Rose K lenses for keratoconus--an Indian experience
    Preeji Mandathara Sudharman
    Bausch and Lomb Contact Lens Center, LV Prasad Eye Institute, Hyderabad, India
    Eye Contact Lens 36:220-2. 2010
    ..To describe initial lens selection and our experience of Rose K lens fitting in keratoconus in Indian eyes...
  46. ncbi Effect of age on outcomes in patients with keratoconus treated by Intacs using a femtosecond laser
    Aylin Ertan
    Kudret Eye Hospital, Ankara, Turkey
    J Refract Surg 24:690-5. 2008
    ..To compare the response to Intacs treatment in different age groups of patients with keratoconus...
  47. ncbi Scheimpflug photographic diagnosis of pellucid marginal degeneration
    Richard N Walker
    Albany Medical College, Albany, NY, USA
    Cornea 27:963-6. 2008
    ....
  48. ncbi Two-year interval changes in Orbscan II topography in eyes with keratoconus
    Afsun Sahin
    Eskisehir Osmangazi University Medical School, Department of Ophthalmology, Meselik, Eskisehir, Turkey
    J Cataract Refract Surg 34:1295-9. 2008
    To define topographic characteristics and quantitatively document changes in corneal topography parameters in relation to the progression of keratoconus over time using the Orbscan II topography system (Bausch & Lomb).
  49. ncbi Repeatability of oculus pentacam metrics derived from corneal topography
    Marco A Miranda
    Faculty of Life Sciences, University of Manchester, Manchester, United Kingdom
    Cornea 28:657-66. 2009
    ..To estimate the variability of Scheimpflug imaging measurements over a 1-week period and to determine the impact of age on the measurements and on the variability of the parameters in the study...
  50. ncbi Method for optimizing topography-guided ablation of highly aberrated eyes with the ALLEGRETTO WAVE excimer laser
    David T C Lin
    University of British Columbia and Pacific Laser Eye Centre, Vancouver, British Columbia, Canada
    J Refract Surg 24:S439-45. 2008
    ..To evaluate the clinical outcomes of custom topographic neutralizing technique in treating highly aberrated eyes using the WaveLight ALLEGRETTO WAVE Excimer Laser...
  51. ncbi Corneal aberrometric and refractive performance of 2 intrastromal corneal ring segment models in early and moderate ectatic disease
    David P Pinero
    Vissum Corporation Instituto Oftalmologico de Alicante, Departamento de Optica, Universidad de Alicante, Alicante, Spain
    J Cataract Refract Surg 36:102-9. 2010
    ..To evaluate and compare visual, refractive, and corneal aberrometric outcomes after implantation of 2 types of intrastromal corneal ring segments (ICRS) in eyes with early to moderate ectatic disease...
  52. ncbi Comparison of and correlation between anterior and posterior corneal elevation maps in normal eyes and keratoconus-suspect eyes
    Zuzana Schlegel
    Ophthalmology, Rothschild Foundation, Paris, France
    J Cataract Refract Surg 34:789-95. 2008
    ..To compare the anterior and posterior corneal elevation maps between keratoconus-suspect eyes and normal eyes...
  53. ncbi Intrastromal corneal ring segment SK implantation for moderate to severe keratoconus
    Wiwan Sansanayudh
    Department of Ophthalmology, Toronto Western Hospital, University of Toronto, Ontario, Canada
    J Cataract Refract Surg 36:110-3. 2010
    ..To report the efficacy and safety of intrastromal corneal ring segment (ICRS) implantation using a femtosecond laser in the management of advanced keratoconus...
  54. pmc Pachymetric mapping with Fourier-domain optical coherence tomography
    Yan Li
    Center for Ophthalmic Optics and Lasers, Doheny Eye Institute and Department of Ophthalmology, Keck School of Medicine, University of Southern California, Los Angeles, California 90033, USA
    J Cataract Refract Surg 36:826-31. 2010
    ..To evaluate the repeatability of Fourier-domain optical coherence tomography (OCT) pachymetric mapping and compare central corneal thickness (CCT) measurements by OCT, ultrasound pachymetry, and scanning-slit tomography...
  55. ncbi Analysis of ectasia after laser in situ keratomileusis: risk factors
    Perry S Binder
    Private Clinical Practice, San Diego, California 92122, USA
    J Cataract Refract Surg 33:1530-8. 2007
    ..To examine a database of laser in situ keratomileusis (LASIK) procedures for preoperative and operative factors assumed to increase the risk for developing post-LASIK ectasia...
  56. ncbi Collagen copolymer toric posterior chamber phakic intraocular lens in eyes with keratoconus
    Jose F Alfonso
    Fernández Vega Ophthalmological Institute, Surgery Department, School of Medicine, University of Oviedo, Oviedo, Spain
    J Cataract Refract Surg 36:906-16. 2010
    ..To assess the safety, efficacy, stability, and predictability of collagen copolymer toric phakic intraocular lens (pIOL) implantation to correct myopia and astigmatism in eyes with keratoconus...
  57. ncbi Intrastromal corneal ring segment implantation by femtosecond laser for keratoconus correction
    Mohamed H Shabayek
    Vissum Instituto Oftalmológico de Alicante Department of Cornea and Refractive Surgery and Division of Ophthalmology, Miguel Hernandez University Medical School, Alicante, Spain
    Ophthalmology 114:1643-52. 2007
    ..To report the outcomes after the implantation of intrastromal corneal ring segments (KERARING) aided by femtosecond laser for the correction of keratoconus...
  58. ncbi Intrastromal ring segment insertion using a femtosecond laser to correct pellucid marginal corneal degeneration
    Aylin Ertan
    Kudret Eye Hospital, Ankara, Turkey
    J Cataract Refract Surg 32:1710-6. 2006
    ..To assess the outcomes of intrastromal ring segment (Intacs, Addition Technology) implantation using a femtosecond laser in patients with pellucid marginal corneal degeneration...
  59. ncbi Penetrating keratoplasty for keratoconus: long-term results
    David Zadok
    Department of Ophthalmology, Tel Aviv University, Assaf Harofeh Medical Center, Zerifin, Israel
    Cornea 24:959-61. 2005
    To study central corneal endothelial cell density and morphology and corneal topography in transplanted corneas for keratoconus 10 to 17 years postoperatively.
  60. ncbi Intracorneal ring segments for iatrogenic keratectasia after laser in situ keratomileusis or photorefractive keratectomy
    Carlo F Lovisolo
    Vista Vision Laser Center, Milan, Italy
    J Refract Surg 18:535-41. 2002
    ....
  61. pmc The specific architecture of the anterior stroma accounts for maintenance of corneal curvature
    L J Müller
    Cornea and Lens Research Unit, The Netherlands Ophthalmic Research Institute, Amsterdam, Netherlands
    Br J Ophthalmol 85:437-43. 2001
    ..To analyse the human corneal stroma in extreme hydration to discover if its structure is responsible for corneal stability...
  62. ncbi Outcomes after topography-based LASIK and LASEK with the wavelight oculyzer and topolyzer platforms
    Arthur B Cummings
    Wellington Eye Clinic, Dublin, Ireland
    J Refract Surg 26:478-85. 2010
    ....
  63. ncbi Corneal topography changes after vitreoretinal surgery
    O Azar-Arevalo
    Cornea Service, Clinica Oftalmologica Centro Caracas, Venezuela
    Ophthalmic Surg Lasers 32:168-72. 2001
    The authors report the results of a prospective study to assess corneal topography changes after vitreoretinal surgery procedures...
  64. ncbi Keratoconus associated with other corneal dystrophies
    Federico A Cremona
    Cornea Service, Wills Eye Institute, Philadelphia, PA 19107, USA
    Cornea 28:127-35. 2009
    ..To report the concomitant presentation of keratoconus and corneal dystrophies at Wills Eye Hospital for the 10-year period from January 1, 1997, to December 31, 2006...
  65. ncbi Repeatability and reproducibility of posterior corneal curvature measurements by combined scanning-slit and placido-disc topography after LASIK
    Miguel J Maldonado
    Department of Ophthalmology, University Clinic, University of Navarra, Pamplona, Spain
    Ophthalmology 113:1918-26. 2006
    ..To assess the repeatability and reproducibility of posterior corneal curvature (PCC) measurements made by combined scanning-slit/Placido-disc topography (Orbscan II) after LASIK...
  66. ncbi Comparison of anterior segment measurements by 3 Scheimpflug tomographers and 1 Placido corneal topographer
    Giacomo Savini
    G B Bietti Eye Foundation IRCCS, Rome, Italy
    J Cataract Refract Surg 37:1679-85. 2011
    ..To compare the anterior segment measurements provided by 3 Scheimpflug tomographers and a Placido corneal topographer...
  67. ncbi Structural analysis of the cornea using scanning-slit corneal topography in eyes undergoing excimer laser refractive surgery
    Kazutaka Kamiya
    Department of Ophthalmology, University of Tokyo School of Medicine, 7 3 1 Hongo, Bunkyo ku, Tokyo, 113 8655, Japan
    Cornea 23:S59-64. 2004
    ..To review the time course of corneal anteroposterior shift and refractive stability after myopic excimer laser keratorefractive surgery...
  68. ncbi Topography-based intraocular lens power selection
    Paul Rolf Preussner
    Universitats Augenklinik, Mainz, Germany
    J Cataract Refract Surg 31:525-33. 2005
    ..To provide mathematical tools for selecting intraocular lens (IOL) power for normal eyes and for "odd" eyes, particularly after corneal refractive surgery...
  69. ncbi Assessing the accuracy of Orbscan II post-LASIK: apparent keratectasia is paradoxically associated with anterior chamber depth reduction in successful procedures
    Gerard Cairns
    Department of Ophthalmology, University of Auckland, Auckland, New Zealand
    Clin Experiment Ophthalmol 33:147-52. 2005
    ..To establish a relationship between the forward protrusion of the cornea (keratectasia), following successful LASIK, and anterior chamber depth...
  70. ncbi A comparison of the ARK-700A autokeratometer and Medmont E300 corneal topographer when measuring peripheral corneal curvature
    J M Gonzalez-Meijome
    Department of Physics Optometry, School of Sciences, University of Minho, 4710 057 Braga, Portugal
    Ophthalmic Physiol Opt 24:391-8. 2004
    ..The purpose of this study was to evaluate if corneal topogometry measurements as taken with the ARK-700A autokeratometer are comparable with those measured by the Medmont E300 videokeratoscope at corresponding locations...
  71. ncbi Visual function and patient experience after bilateral implantation of toric intraocular lenses
    Iqbal Ike K Ahmed
    Credit Valley Eye Care, 3200 Erin Mills Parkway, Unit 1, Mississauga, Ontario L5L 1W8, Canada
    J Cataract Refract Surg 36:609-16. 2010
    ..To evaluate the efficacy, stability, predictability, and patient-reported outcomes of bilateral toric intraocular lens (IOL) implantation in cases of cataract with preexisting astigmatism...
  72. ncbi [Pentacam--the new way for anterior eye segment imaging and mapping]
    Dorota Kopacz
    Z Katedry i Kliniki Okulistyki I Wydziału Lekarskiego Akademii Medycznej w Warszawie
    Klin Oczna 107:728-31. 2005
    ..Any eye movements are detected by a second camera and corrected for, in the process. All results are written down on PC and are available for the prospective studies...
  73. ncbi Tomography-based customized IOL calculation model
    Zhongxia Zhu
    Medical Optics at the Institute of Medical Physics, University of Erlangen Nuremberg, Erlangen, Germany
    Curr Eye Res 36:579-89. 2011
    ..To provide a mathematical calculation scheme for customized intraocular lens (IOL) design based on high resolution anterior segment optical coherence tomography (AS-OCT) of anterior eye segment and axial length data...
  74. ncbi Applying wavefront sensors and corneal topography to keratoconus
    Jason Marsack
    Biomedical Engineering Dept, University of Texas at Austin, Austin, TX 78712, USA
    Biomed Sci Instrum 38:471-6. 2002
    ..A lens design algorithm has been developed that utilizes both wavefront sensor data and corneal topography data. The lenses will be formed from thick, pre-fabricated soft contact lenses using laser ablation...
  75. ncbi Reproducibility of optical biometry using partial coherence interferometry : intraobserver and interobserver reliability
    A Vogel
    Department of Ophthalmology, Johannes Gutenberg University, Mainz, Germany
    J Cataract Refract Surg 27:1961-8. 2001
    ..To evaluate the intraobserver and interobserver variability in axial length (AL), anterior chamber depth (ACD), and corneal radius measurements using an optical biometry instrument based on partial coherence interferometry (PCI)...
  76. ncbi Corneal ectasia after laser in situ keratomileusis in patients without apparent preoperative risk factors
    Shawn R Klein
    Cornea Service, Department of Ophthalmology, Rush University Medical Center, Chicago, IL 60612, USA
    Cornea 25:388-403. 2006
    ..To evaluate patients who developed ectasia with no apparent preoperative risk factors...
  77. ncbi Ferrara intracorneal ring segments for keratoconus
    Sergio Kwitko
    Department of Ophthalmology, Hospital de Clinicas de Porto Alegre, Avenida Nilo Peçanha, 7241 401 Porto Alegre RS, Brazil
    J Cataract Refract Surg 30:812-20. 2004
    ..To assess the outcome of Ferrara intracorneal ring segments for keratoconus...
  78. ncbi Topography-Guided vs Wavefront-Optimized Surface Ablation for Myopia Using the WaveLight Platform: A Contralateral Eye Study
    Khalil Ghasemi Falavarjani
    Eye Research Center, Iran University of Medical Science, Iran
    J Refract Surg 27:13-7. 2011
    ..to compare treatments with wavefront-optimized and topography-guided ablations...
  79. ncbi Visual acuity and corneal topographic changes related with pterygium surgery
    Meltem Yagmur
    Department of Ophthalmology, Cukurova University, Faculty of Medicine, Adana, Turkey
    J Refract Surg 21:166-70. 2005
    Applied pre- and postoperative corneal topography outcomes with visual acuities were evaluated to determine the surgical results in pterygium therapy.
  80. ncbi The effect of pterygium surgery on corneal topography
    A Cinal
    Yuzuncu Yil University Medical Faculty, Department of Ophthalmology, Van, Turkey
    Ophthalmic Surg Lasers 32:35-40. 2001
    The aim of this prospective randomized clinical study was to evaluate the effect of pterygium surgery on the corneal topography using a computerized corneal topography system.
  81. ncbi Corneal thickness measurements: scanning-slit corneal topography and noncontact specular microscopy versus ultrasonic pachymetry
    Shigenobu Suzuki
    Department of Ophthalmology, University of Tokyo School of Medicine, Tokyo, Japan
    J Cataract Refract Surg 29:1313-8. 2003
    To compare central corneal thickness measurements taken with 3 pachymetry systems: Orbscan scanning-slit corneal topography/pachymetry, Topcon SP2000P noncontact specular microscopy, and Tomey ultrasonic pachymetry.
  82. ncbi Intrastromal corneal ring segment implantation with the femtosecond laser in a post-keratoplasty patient with recurrent keratoconus
    Efekan Coskunseven
    World Eye Hospital, Istanbul, Turkey
    J Cataract Refract Surg 33:1808-10. 2007
    ..Although the results are encouraging, the long-term effect of this approach for the management of post-keratoplasty patients with recurrent keratoconus is not known...
  83. ncbi Accuracy of Scheimpflug corneal power measurements for intraocular lens power calculation
    Giacomo Savini
    G B Bietti Eye Foundation IRCCS, Rome, Italy
    J Cataract Refract Surg 35:1193-7. 2009
    ..To evaluate the accuracy of corneal power measurements by the Pentacam Scheimpflug system for intraocular lens (IOL) power calculation...
  84. ncbi Aberrations and Pupil location under corneal topography and Hartmann-Shack illumination conditions
    Juan Tabernero
    Laboratorio de Optica, Departamento de Fisica, Universidad de Murcia, Campus de Espinardo Edificio CiOyN, Murcia, Spain
    Invest Ophthalmol Vis Sci 50:1964-70. 2009
    ..conducted to determine the magnitude of pupil center shift between the illumination conditions provided by corneal topography measurement (photopic illuminance) and by Hartmann-Shack aberrometry (mesopic illuminance) and to ..
  85. ncbi Corneal topography with Scheimpflug imaging and videokeratography: comparative study of normal eyes
    Scott A Read
    Contact Lens and Visual Optics Laboratory, School of Optometry, Queensland University of Technology, Brisbane, Queensland, Australia
    J Cataract Refract Surg 35:1072-81. 2009
    To compare the repeatability within anterior corneal topography measurements and agreement between measurements with the Pentacam HR rotating Scheimpflug camera and with a previously validated Placido disk-based videokeratoscope (Medmont ..
  86. ncbi Residual bed thickness and corneal forward shift after laser in situ keratomileusis
    Kazunori Miyata
    Miyata Eye Hospital, Miyasaki, Japan
    J Cataract Refract Surg 30:1067-72. 2004
    ..To prospectively assess the forward shift of the cornea after laser in situ keratomileusis (LASIK) in relation to the residual corneal bed thickness...
  87. ncbi Intraocular lens power calculation after laser refractive surgery: corrective algorithm for corneal power estimation
    Haiying Jin
    Guangdong Eye Institute, Guangdong Academy of Medical Sciences, Guangzhou, China
    J Cataract Refract Surg 36:87-96. 2010
    ..To evaluate an algorithm for corneal power estimation in intraocular lens (IOL) power calculation after myopic laser refractive surgery using direct corneal measurements...
  88. ncbi Corneal and total wavefront aberrations in phakic and pseudophakic eyes after implantation of monofocal foldable intraocular lenses
    Hans Peter Iseli
    Institute of Refractive and Ophthalmic Surgery, Zurich, Switzerland
    J Cataract Refract Surg 32:762-71. 2006
    ..To compare the correlation between corneal and total wavefront aberrations in normal phakic and pseudophakic eyes after implantation of foldable monofocal intraocular lenses (IOLs)...
  89. ncbi Early spatial changes in the posterior corneal surface after laser in situ keratomileusis
    Do Hyung Lee
    Department of Ophthalmology, Ilsan Paik Hospsital, Inje University Medical College, South Korea
    J Cataract Refract Surg 29:778-84. 2003
    ..To evaluate the forward shift of the posterior corneal surface after myopic laser in situ keratomileusis (LASIK) relative to the residual stromal bed thickness and the ablation percentage of the total corneal thickness...
  90. ncbi Interchangeability between Placido disc and Scheimpflug system: quantitative and qualitative analysis
    Vinícius Silbiger de Stefano
    Escola Paulista de Medicina, Universidade Federal de Sao Paulo UNIFESP, Sao Paulo, SP, Brazil
    Arq Bras Oftalmol 73:363-6. 2010
    ..Many systems try to replace Placido disc-based topographers, such as those based in Scheimpflug principles. The purpose of this study is to check if they are interchangeable...
  91. ncbi Measuring central corneal thickness with ultrasound pachymetry
    Tony Realini
    Department of Ophthalmology, Jones Eye Institute, University of Arkansas for Medical Sciences, 4301 West Markham Street, Mail Slot 523, Little Rock, AR 72205, USA
    Optom Vis Sci 80:437-9. 2003
    ..To determine how many ultrasound pachymetry measurements are required to obtain a reasonable estimate of central corneal thickness...
  92. ncbi Repeatability of corneal power and wavefront aberration measurements with a dual-Scheimpflug Placido corneal topographer
    Li Wang
    Department of Ophthalmology, Baylor College of Medicine, Houston, Texas 77030, USA
    J Cataract Refract Surg 36:425-30. 2010
    ..To evaluate the repeatability of the Galilei dual-Scheimpflug analyzer in measuring corneal curvature, wavefront aberrations, pachymetry, and anterior chamber depth (ACD)...
  93. ncbi A comparative study of the performance of different corneal topographers on children with respect to orthokeratology practice
    Wan Sang Chui
    Centre for Myopia Research, Department of Optometry and Radiography, The Hong Kong Polytechnic University, HKSAR, China
    Optom Vis Sci 82:420-7. 2005
    ....
  94. ncbi Longitudinal analysis of corneal topography in suspected keratoconus
    M Shirayama-Suzuki
    Department of Ophthalmology, University of Tokyo Graduate School of Medicine, Tokyo, Japan
    Br J Ophthalmol 93:815-9. 2009
    To examine the incidence of progression of suspected keratoconus to true keratoconus and compare quantitative descriptors of corneal topography between eyes with and without progression.
  95. ncbi Correlations between central and peripheral changes in anterior corneal topography after myopic LASIK and their implications in postsurgical contact lens fitting
    Jose M Gonzalez-Meijome
    Department of Physics Optometry, School of Sciences, University of Minho, Braga, Portugal
    Eye Contact Lens 32:197-202. 2006
    ..LASIK) and to correlate them with the manifest refractive change to discuss how such results could affect post-LASIK corneal topography profiles and midterm stability and their implications in postsurgical contact lens fitting.
  96. ncbi Refractive changes after phacoemulsification combined with deep sclerectomy assisted by corneal topography
    Juan Corcostegui
    Glaucoma Unit, Ophthalmology Department, Hospital Ramon y Cajal, University of Alcala, Madrid, Spain
    J Cataract Refract Surg 30:2391-6. 2004
    ..To evaluate the corneal surgically induced refractive change (SIRC) after phacoemulsification and deep sclerectomy...
  97. ncbi Intracorneal asymmetrical rings for keratoconus: where should the thicker segment be implanted?
    Jorge L Alio
    VISSUM Instituto Oftalmologico de Alicante, Department of Refractive Surgery, and Division of Ophthalmology, Miguel Hernandez University, Medical School, Alicante, Spain
    J Refract Surg 22:307-9. 2006
    ..To report a 20-year-old man who presented with monocular diplopia in the right eye with uncorrected visual acuity (UCVA) of 0.3 and best spectacle-corrected visual acuity (BSCVA) of 1.0 with -0.50 -3.00 x 45 degrees...
  98. ncbi Time course of changes in corneal forward shift after excimer laser photorefractive keratectomy
    Kazunori Miyata
    Meiwakai Medical Foundation, Miyata Eye Hospital, Miyazaki, Japan
    Arch Ophthalmol 120:896-900. 2002
    ..Excimer laser refractive surgery has been reported to induce forward shift of the cornea, but its long-term sequelae remain unknown...
  99. ncbi Cataract surgery in keratoconus
    Nuthida Thebpatiphat
    Cornea Service, Wills Eye Hospital, Jefferson Medical College, Thomas Jefferson University, Philadelphia, PA 19107, USA
    Eye Contact Lens 33:244-6. 2007
    ....
  100. ncbi Evaluation of free-form IOL topographies by clinically available topographers
    Marc Kannengießer
    Institute of Experimental Ophthalmology, Kirrberger Straße 100, Gebäude 7, 66421 Homburg Saar, Germany
    Z Med Phys 22:215-23. 2012
    ..The purpose of this paper is to show the applicability of clinically available corneal topographers for measuring individual IOLs consisting of a spherical surface on one side and a freeform surface on the other side...
  101. ncbi Accuracy and precision of EyeSys and Orbscan systems on calibrated spherical test surfaces
    Javier González Pérez
    School of Optometry, University of Santiago de Compostela, Galicia, Spain
    Eye Contact Lens 30:74-8. 2004
    ..There are several applications that need an accurate and precise method to measure corneal shape and variations, such as the effect of contact lens wear and the different refractive surgery techniques...

Research Grants46

  1. Therapeutic Corneal Cross-linking Using Aliphatic Beta-Nitroalcohols
    David C Paik; Fiscal Year: 2013
    ..Real time in vivo efficacy and safety evaluations (using in vivo confocal microscopy, ultrasound pachymetry, corneal topography, and applanation tonometry) will be performed, followed by post-mortem mechanical failure testing, shrinkage ..
  2. Shack-Hartman Corneal Topographer and Aberrometer
    Larry Thibos; Fiscal Year: 2002
    ..of our project is to design, build, and market an ophthalmic instrument that simultaneously measures corneal topography and optical aberrations of the human eye using wavefront sensing technology...
  3. LASER SYSTEM FOR PHOTOTHERMAL INTRASTROMAL KERATOPLASTY
    LEIF FREDIN; Fiscal Year: 1991
    ..in vivo (rabbit) experiments to demonstrate the feasibility of obtaining controlled and accurate changes in corneal topography without inducing clinically significant damage...
  4. ABLATABLE MASK FOR LASER REPROFILING OF THE CORNEA
    RAYMOND HENRY; Fiscal Year: 1992
    ..Baseline corneal topography will be compared to postoperative results by nine-ring corneoscopic photoanalysis...
  5. ADAPTABLE RASTERSTEREOGRAPHIC CORNEAL TOPOGRAPHY SYSTEM
    Steven Wilder; Fiscal Year: 2004
    ..This system will allow real-time imaging of corneal topography for intra-operative applications; a system which is not currently available.
  6. CORNEAL TOPOGRAPHY ANALYSIS TOOL
    William Timmons; Fiscal Year: 2001
    ..With the proposed corneal topography tool, a patient's data would be universally readable and accessible...
  7. DETECTION SYSTEM FOR REFRACTIVE SURGERY IN DONOR EYES
    JAMES MAROUS; Fiscal Year: 2005
    ..I SBIR to develop and validate a simple, rapid, reliable, and sensitive software detection tool, based on corneal topography that will identify human donor eyes that have had previous laser refractive surgery...
  8. Multi-Resolution Corneal Topography (MRCT)
    EDWIN SARVER; Fiscal Year: 2003
    ..the anterior corneal surface that will be more robust and accurate than other commercially available corneal topography systems...
  9. Advanced Vision Intervention Algorithm(AVIA)
    EDWIN SARVER; Fiscal Year: 2001
    ..program will allow, but not require, exam data from commercially available ophthalmic instruments such as corneal topography and wavefront aberration for input in the optical modeling of an individual's eye...
  10. NOVEL APPROACH TO DELIVERING EXCIMER UV ENERGY FOR PRK
    Roy Williams; Fiscal Year: 2000
    ..device, consisting of a 640x480 array of individually- controlled micromirrors, coupled to a digital corneal topography system...
  11. PROGRAM FOR A 3D SCHEMATIC EYE EMPLOYING TRUE DATA
    EDWIN SARVER; Fiscal Year: 2000
    ..The software program VOL-3D will be purchased and used by clinicians, vision researchers, owners of corneal topography systems, students, teachers, and companies who are attempting to understand in a predictive manner the ..
  12. 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. ..
  13. CLEK STUDY CORNEAL TOPOGRAPHY READING CENTER
    Timothy McMahon; Fiscal Year: 2004
    The Collaborative Longitudinal Evaluation of Keratoconus (CLEK) Corneal Topography Reading Center (CTRC) provides data collection, quality control, storage, database generation and data analysis of corneal topography acquired during the ..
  14. Predictor Analyses of Corneal Topography Data From Keratconus Subjects
    Timothy McMahon; Fiscal Year: 2007
    ..DESCRIPTION (provided by applicant): The specific aims of this proposal are to evaluate the predictive value corneal topography derived indices and first surface wavefront aberrations have on selected clinical outcome measures, patient ..
  15. ABERRATIONS OF EYES IN NORMAL AND CLINICAL POPULATIONS
    Raymond A Applegate; Fiscal Year: 2010
    ..abstract_text> ..
  16. 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]..
  17. Longitudinal Analysis of Silicone Hydrogel (LASH) Study
    Loretta Szczotka Flynn; Fiscal Year: 2008
    ..test the hypothesis that novel quantitative central and peripheral corneal shape descriptors, measured by corneal topography, are associated with mechanical complications during long term wear of silicone hydrogel lenses...
  18. 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]..
  19. Vision Research--Biostatistics and Epidemiology Module
    Karla Zadnik; Fiscal Year: 2007
    ..abstract_text> ..
  20. INTEGRATED ASSESSMENT OF CORNEAL FORM AND FUNCTION
    STEPHEN KLYCE; Fiscal Year: 2006
    ..shape anomalies and means to assess the optical quality of the corneal surface through the analysis of corneal topography. [unreadable] [unreadable] This investigation will involve both an in vitro model and mathematical models, ..
  21. Retinal Image Quality in Retinal-diseased Eyes
    Mahnaz Shahidi; Fiscal Year: 2010
    ....
  22. Corneal Refractive Power Post Refractive Surgery
    CHARLOTTE JOSLIN; Fiscal Year: 2008
    ..The long-term objective to this research is to contribute to the knowledge of IOL power determination in post-refractive surgery patients. ..
  23. Multi-Resolution Corneal Topography (MRCT)
    EDWIN SARVER; Fiscal Year: 2006
    ..1020 Wild Elm Street Celebration, FL 34747 of measuring the anterior corneal available corneal topography systems. target methods in that it incorporates a (9, 17, and 33 rings) in a single exam. KEY PERSONNEL...
  24. OPTOMETRY COORDINATING CENTER
    Karla Zadnik; Fiscal Year: 2002
    ....
  25. 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 ..
  26. CLINICAL RESEARCH CURRICULUM
    Karla Zadnik; Fiscal Year: 2004
    ..abstract_text> ..
  27. Noninvsive Imaging of Chorio-retinal Oxygen Tension
    Mahnaz Shahidi; Fiscal Year: 2005
    ..abstract_text> ..
  28. 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. ..
  29. The Contact Lens and Dry Eye Study
    Jason Nichols; Fiscal Year: 2006
    ..The long-term objective of this research is to contribute to a better understanding of the etiology and risk factors for contact lens-related dry eye so that progress can be made toward its prevention. ..
  30. OCULAR DEVELOPMENT IN INFANCY/EARLY CHILDHOOD
    Donald Mutti; Fiscal Year: 2005
    ..abstract_text> ..
  31. Structure/Function Relationship of The Lumican Gene
    Winston W Kao; Fiscal Year: 2010
    ..g., persistent and excessive inflammation, corneal transparency of injured cornea, improved wound healing of diabetes, etc. ..
  32. A novel therapeutic for the treatment of persistent corneal epithelial defects
    Bennie H Jeng; Fiscal Year: 2010
    ..The results of this study could therefore support and lead to the commercialization of this non-surgical method for enhancing epithelial wound healing, which could ultimately benefit nearly 23,000 corneas in the United States annually. ..
  33. Environmentally-Induced Ocular Surface Inflammation Mimicking Sjogren's Syndrome
    Michael J Stern; Fiscal Year: 2010
    ..We further propose that the severity of this ALKC is worsened by defective self tolerance mechanisms. ..
  34. 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. ..
  35. High Resolution and High Contrast Near-IR Imaging of the Human Fundus
    Nathan Doble; Fiscal Year: 2006
    ..Under this proposal, new imaging technology will be developed to fight debilitating eye disease resulting in earlier disease detection, faster drug clinical trials, and better medical understanding. [unreadable] [unreadable] [unreadable]..
  36. VISION CHANGES IN DIABETES
    Anthony J Adams; Fiscal Year: 2010
    ..It also aids identification of 'at risk'populations for clinical trials of candidate therapies, which may greatly reduce their cost by decreasing the size of the needed sample and the duration of the trial. ..
  37. K12 Expression: Cornea-Type Epithelial Differentiation
    WINSTON KAO; Fiscal Year: 2008
    ..Aim 3 is to examine roles of Fos on corneal-type epithelium differentiation and corneal wound healing as described in Aim 2. ..
  38. Optical Measurement of Choroid to Photoreceptor Distance
    DANIEL NEAL; Fiscal Year: 2002
    ..Medical practice is anticipated to benefit through advancements in automated refraction techniques. ..
  39. HIGH-RESOLUTION IMAGING OF OCULAR MELANOMA AND RETINA
    Dirk Uwe Bartsch; Fiscal Year: 2003
    ..Since we can measure and characterize these aberrations, we can develop digital inverse filter based on our experience in image reconstruction to correct the acquired images. ..
  40. Mice Overexpressing rtTA and Cre in Corneal Epithelium
    WINSTON KAO; Fiscal Year: 2004
    ..These mouse lines will be useful in preparing mouse lines for studies of altered genetic functions from the corneal epithelium-specific gene ablation and overexpression of reporter genes. ..
  41. Shack-Hartmann Corneal Topographer and Aberrometer
    DANIEL NEAL; Fiscal Year: 2005
    ..of our project is to design, build, and market an ophthalmic instrument that simultaneously measures corneal topography, corneal aberrations, and whole-eye optical aberrations of the human eye using wavefront sensing technology...
  42. Visual Optics and Cornea
    P Soni; Fiscal Year: 2008
    ..Extensive recruitment tools and personal contacts will be utilized to advertise the program broadly to attract the best applicants including women and minorities. [unreadable] [unreadable]..
  43. RETINAL NERVE FIBER LAYER REFLECTANCE MECHANISMS
    Xiangrun Huang; Fiscal Year: 2007
    ..Birefringence is an intrinsic property of the tissue, depends directly on RNFL ultrastructure, and may provide a means of early detection of structural damage to ganglion cells in glaucoma. ..