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Vision through an abnormal cornea: A pilot study of the relationship between visual loss from corneal distortion, corneal edema, keratoconus, and some allied corneal pathology

Hess, Robert F. & Carney, Leo G. (1979) Vision through an abnormal cornea: A pilot study of the relationship between visual loss from corneal distortion, corneal edema, keratoconus, and some allied corneal pathology. Investigative Ophthalmology and Visual Science, 18(5), pp. 476-483.

Abstract

Visual function was assessed by classic acuity measures as well as contrast thresholds over a wide spatial frequency range for subjects with experimentally induced corneal distortion and induced corneal edema. These results were compared with similar results for patients with uniocular keratoconus, bilateral keratoconus, and allied corneal pathology. Distortion and edema were found to produce characteristically different types of contrast attenuation at threshold (amplitude) and have quite different suprathreshold abnormalities (phase) for objects within the resolution limit and therefore could form the basis of a useful functional classification of the visual degradation from corneal pathology.

Impact and interest:

14 citations in Scopus
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ID Code: 3160
Item Type: Journal Article
Additional Information: For more information, please refer to the journal's website (see link) or contact the author. Author contact details: l.carney@qut.edu.au
Additional URLs:
Keywords: Vision, Corneal Diseases/, physiopathology, Vision Disorders/, physiopathology, Cornea/pathology, Corneal Diseases/pathology, Edema/physiopathology, Humans, Keratoconus/physiopathology, Light, Vision Tests/instrumentation, Vision Tests/methods, Visual Acuity
ISSN: 0146-0404
Subjects: Australian and New Zealand Standard Research Classification > MEDICAL AND HEALTH SCIENCES (110000) > OPTOMETRY AND OPHTHALMOLOGY (111300)
Divisions: Current > QUT Faculties and Divisions > Faculty of Health
Copyright Owner: Copyright 1979 Association for Research in Vision and Ophthalmology
Deposited On: 30 Jan 2006
Last Modified: 15 Jan 2009 16:54

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