December 2005
Volume 5, Issue 12
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OSA Fall Vision Meeting Abstract  |   December 2005
Appearance of keratoconus eyes: Computation
Author Affiliations
  • Kevin Baker
    Center for Laser Applications, University of Tennessee Space Institute
  • Ying-Ling Chen
    Center for Laser Applications, University of Tennessee Space Institute
  • James W. L. Lewis
    Center for Laser Applications, University of Tennessee Space Institute
  • Ming Wang
    Wang Vision Institute
Journal of Vision December 2005, Vol.5, 47. doi:10.1167/5.12.47
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      Kevin Baker, Ying-Ling Chen, James W. L. Lewis, Ming Wang; Appearance of keratoconus eyes: Computation. Journal of Vision 2005;5(12):47. doi: 10.1167/5.12.47.

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Abstract

Keratoconus (KC) is a corneal atrophy that results to cone-shaped feature on the anterior surface. The abnormal corneal curvature increases the refractive power asymmetrically, which introduces myopic and astigmatic symptoms. Due to this similarity, KC cases are often misdiagnosed as common refractive error. In this paper, the measured corneal topography and the manifest defocus prescriptions from 3 KC and 3 regular refractive-error patients are acquired to construct the representative computer eye models. The data from topography is implanted onto the front surface of an emmetropic eye model. With a commercial optical design program, a 3-variable intraocular lens is used to accomplish the patient's eye model with appropriate refractive condition. These 6 eye models are then used to simulate the measurement result from common optometry devices. A comparison of the KC and refractive-error groups is presented.

Baker, K. Chen, Y.-L. Lewis, J. W. L. Wang, M. (2005). Appearance of keratoconus eyes: Computation [Abstract]. Journal of Vision, 5(12):47, 47a, http://journalofvision.org/5/12/47/, doi:10.1167/5.12.47. [CrossRef]
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