Howard Howland

Summary

Affiliation: Cornell University
Country: USA

Publications

  1. ncbi request reprint Normal values and standard deviations for pupil diameter and interpupillary distance in subjects aged 1 month to 19 years
    Colleen MacLachlan
    Department of Neurobiology and Behavior, Cornell University, Ithaca, NY 14853, USA
    Ophthalmic Physiol Opt 22:175-82. 2002
  2. ncbi request reprint Corneal curvatures and refractions of central American frogs
    H C Howland
    Division of Biological Sciences, Cornell University, Ithaca, NY 14850, USA
    Vision Res 37:169-74. 1997
  3. ncbi request reprint Allometry and scaling of wave aberration of eyes
    Howard C Howland
    Department of Neurobiology and Behavior, Cornell University, W 201, Seeley G Mudd Hall, Ithaca, NY 14853, USA
    Vision Res 45:1091-3. 2005
  4. ncbi request reprint The allometry and scaling of the size of vertebrate eyes
    Howard C Howland
    Section of Neurobiology and Behavior, Cornell University, W 201 Mudd Hall, Ithaca, NY 14853, USA
    Vision Res 44:2043-65. 2004
  5. doi request reprint Photorefraction of eyes: history and future prospects
    Howard C Howland
    Department of Neurobiology and Behavior, Cornell University, Ithaca, New York 14853, USA
    Optom Vis Sci 86:603-6. 2009
  6. ncbi request reprint High order wave aberration of eyes
    Howard C Howland
    Department of Neurobiology and Behavior, Cornell University, Ithaca, NY 14853, USA
    Ophthalmic Physiol Opt 22:434-9. 2002
  7. ncbi request reprint The effects of constant and diurnal illumination of the pineal gland and the eyes on ocular growth in chicks
    Tong Li
    Department of Neurobiology and Behavior, Cornell University, Ithaca, New York 14853, USA
    Invest Ophthalmol Vis Sci 44:3692-7. 2003
  8. ncbi request reprint Role of the pineal gland in ocular development of the chick in normal and constant light conditions
    Tong Li
    Department of Neurobiology and Behavior, Cornell University, Ithaca, NY 14853, USA
    Invest Ophthalmol Vis Sci 47:5132-6. 2006
  9. ncbi request reprint Compensation of corneal horizontal/vertical astigmatism, lateral coma, and spherical aberration by internal optics of the eye
    Jennifer E Kelly
    Department of Neurobiology and Behavior, Cornell University, Ithaca, NY 14853, USA
    J Vis 4:262-71. 2004
  10. ncbi request reprint Accommodative state of young adults using reading spectacles
    Jennifer A Shapiro
    Department of Neurobiology and Behavior, W 201 Mudd Hall, Cornell University, Ithaca, NY 14853, USA
    Vision Res 45:233-45. 2005

Research Grants

  1. REFRACTIVE STUDIES OF EYES
    Howard Howland; Fiscal Year: 1980
  2. REFRACTIVE STUDIES OF EYES
    Howard Howland; Fiscal Year: 1993
  3. NEURAL AND HORMONAL PATHWAYS IN OCULAR DEVELOPMENT
    Howard Howland; Fiscal Year: 2003

Collaborators

Detail Information

Publications14

  1. ncbi request reprint Normal values and standard deviations for pupil diameter and interpupillary distance in subjects aged 1 month to 19 years
    Colleen MacLachlan
    Department of Neurobiology and Behavior, Cornell University, Ithaca, NY 14853, USA
    Ophthalmic Physiol Opt 22:175-82. 2002
    ..The normal values and S.D. for both pupil size and PD determined in this study have important clinical implications as well as applications in the optical industry...
  2. ncbi request reprint Corneal curvatures and refractions of central American frogs
    H C Howland
    Division of Biological Sciences, Cornell University, Ithaca, NY 14850, USA
    Vision Res 37:169-74. 1997
    ..270 +/- 0.032; other vertebrates: 0.151 +/- 0.004). Among the anurans examined, nocturnal Hylids had significantly larger eyes than diurnal Dendrobatid frogs and Bufonid toads...
  3. ncbi request reprint Allometry and scaling of wave aberration of eyes
    Howard C Howland
    Department of Neurobiology and Behavior, Cornell University, W 201, Seeley G Mudd Hall, Ithaca, NY 14853, USA
    Vision Res 45:1091-3. 2005
    ..This implies that, if wave aberration is measured in a growing eye with a constant measurement pupil size, the measured RMS will decrease by the factor 1/k(n-1)...
  4. ncbi request reprint The allometry and scaling of the size of vertebrate eyes
    Howard C Howland
    Section of Neurobiology and Behavior, Cornell University, W 201 Mudd Hall, Ithaca, NY 14853, USA
    Vision Res 44:2043-65. 2004
    ..The axial length of the eye is largest in birds and primates, smaller in other mammals (especially rodents) and reptiles, and widely varying in fishes...
  5. doi request reprint Photorefraction of eyes: history and future prospects
    Howard C Howland
    Department of Neurobiology and Behavior, Cornell University, Ithaca, New York 14853, USA
    Optom Vis Sci 86:603-6. 2009
    ..This has been greatly helped by the parallel development of computer and digital camera technology. It seems likely that photorefractive methods will continue to be refined and may eventually become ubiquitous in clinical practice...
  6. ncbi request reprint High order wave aberration of eyes
    Howard C Howland
    Department of Neurobiology and Behavior, Cornell University, Ithaca, NY 14853, USA
    Ophthalmic Physiol Opt 22:434-9. 2002
    ..918 +/- 0.048 SE + 3.023 +/- 0.111 x log (pupil radius) (mm), with R2 = 0.971...
  7. ncbi request reprint The effects of constant and diurnal illumination of the pineal gland and the eyes on ocular growth in chicks
    Tong Li
    Department of Neurobiology and Behavior, Cornell University, Ithaca, New York 14853, USA
    Invest Ophthalmol Vis Sci 44:3692-7. 2003
    ..To investigate the effects of constant or 12-hour cyclic illumination of the pineal gland and the eyes on the growth of the chick eye...
  8. ncbi request reprint Role of the pineal gland in ocular development of the chick in normal and constant light conditions
    Tong Li
    Department of Neurobiology and Behavior, Cornell University, Ithaca, NY 14853, USA
    Invest Ophthalmol Vis Sci 47:5132-6. 2006
    ..To evaluate the role of the pineal gland in development of the chick eye in normal and constant light (CL) conditions...
  9. ncbi request reprint Compensation of corneal horizontal/vertical astigmatism, lateral coma, and spherical aberration by internal optics of the eye
    Jennifer E Kelly
    Department of Neurobiology and Behavior, Cornell University, Ithaca, NY 14853, USA
    J Vis 4:262-71. 2004
    ..Lateral coma shows individually scaled compensation, some of which may be attributable to eccentricity of the fovea...
  10. ncbi request reprint Accommodative state of young adults using reading spectacles
    Jennifer A Shapiro
    Department of Neurobiology and Behavior, W 201 Mudd Hall, Cornell University, Ithaca, NY 14853, USA
    Vision Res 45:233-45. 2005
    ..The over-accommodation of subjects using reading spectacles while they are performing visual tasks shows the necessity of measurement if their true accommodative posture is to be determined...
  11. ncbi request reprint Growth of the cornea from infancy to adolescence
    Ariel Ronneburger
    Department of Neurobiology and Behavior, Cornell University, Ithaca, NY 14853, USA
    Ophthalmic Physiol Opt 26:80-7. 2006
    ..095 S.E.) + 0.0305 (+/-0.014) x Age (years). From a comparison of data from earlier literature and our own measurements, we conclude that, after birth, the fastest growth of the cornea must occur during the first few months of life...
  12. ncbi request reprint Changes in the refractive state during prey capture under low light in the nocturnal cardinalfish Apogon annularis
    Roi Holzman
    The Interuniversity Institute for Marine Sciences in Eilat, P O Box 469, 88103 Eilat, Israel
    Vision Res 46:2094-101. 2006
    ..We conclude that nocturnal vision in A. annularis is sufficiently sensitive to allow accommodation during prey capture...
  13. ncbi request reprint Measurement of refractive state and deprivation myopia in two strains of mice
    Frank Schaeffel
    University Eye Hospital, Section for Neurobiology of the Eye, Tuebingen, Germany
    Optom Vis Sci 81:99-110. 2004
    ..We have investigated how precisely eyes of mice can be refracted and tested whether deprivation myopia can be induced by frosted diffusers...
  14. ncbi request reprint Corneal power and underwater accommodation in great cormorants (Phalacrocorax carbo sinensis)
    Gadi Katzir
    Department of Biology, University of Haifa, Oranim, Tivon 36006, Israel
    J Exp Biol 206:833-41. 2003
    ..These results support previously reported capacities of lenticular changes in amphibious birds yet do not fully correspond with earlier reports in terms of the coupling of iris constriction with accommodation, and time course...

Research Grants24

  1. REFRACTIVE STUDIES OF EYES
    Howard Howland; Fiscal Year: 1980
    ..A major question which the study will attempt to answer is whether early infant astigmatism is primarily corneal or lenticular in nature...
  2. REFRACTIVE STUDIES OF EYES
    Howard Howland; Fiscal Year: 1993
    ..We will also investigate the mechanics of accommodation in chickens, looking at the mechanical and refractive behavior of excised eyes and the mechanical properties of strips of cornea...
  3. 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. ..