Precision Measurement Of Corneal Topography

P. R. Yoder Jr.; T. F. Macri; W. B. Telfair; P. S. Bennett; C. A. Martin; J. W Warner

doi:10.1117/12.950979

1 May 1989 Precision Measurement Of Corneal Topography

P. R. Yoder Jr., T. F. Macri, W. B. Telfair, P. S. Bennett, C. A. Martin, J. W Warner

Proceedings Volume 1036, Precision Instrument Design; (1989) https://doi.org/10.1117/12.950979
Event: SPIE Advanced Processing Technologies for Optical and Electronic Devices (colocated wth OPTCON), 1988, Santa Clara, CA, United States

Abstract

We describe a new electro-optical device being developed to provide precise measurements of the three-dimensional topography of the human cornea. This device, called a digital keratoscope, is intended primarily for use in preparing for and determining the effect of corneal surgery procedures such as laser refractive keratectomy, radial keratotomy or corneal transplant on the refractive power of the cornea. It also may serve as an aid in prescribing contact lenses. The basic design features of the hardware and of the associated computer software are discussed, the means for alignment and calibration are described and typical results are given.

Citation Download Citation

P. R. Yoder Jr., T. F. Macri, W. B. Telfair, P. S. Bennett, C. A. Martin, and J. W Warner "Precision Measurement Of Corneal Topography", Proc. SPIE 1036, Precision Instrument Design, (1 May 1989); https://doi.org/10.1117/12.950979

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