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Computerized Cataract Detection and Classification

P.A. Edwards, M.B. Datiles, M. Unser, B.L. Trus, V. Freidlin, K. Kashima

Current Eye Research, vol. 9, no. 6, pp. 517-524, June 1990.


156 eyes of patients and normal volunteers were classified at the slit lamp into the following pure groups: normal (n = 50), nuclear (n = 39), cortical (n = 33) and PSC (n = 34). The eyes were photographed with the Topcon SL-45 Scheimpflug camera and the images scanned and processed to obtain one dimensional profiles through a 40 × 440 micron axial window. Of the 156 profiles, 90 were used as reference samples and were processed to obtain average profiles. The remaining 66 "unknown" profiles and each of the reference profiles, were classified into the four groups based on their distance from the average profiles in Euclidean space. The system was found to be very sensitive (98%) in detecting the presence of cataracts and specific (100%) in identifying normal, i.e., cataract negative lenses. In classifying pure cataracts into the various classes 98% of answers were correct.

@ARTICLE(http://bigwww.epfl.ch/publications/edwards9001.html,
AUTHOR="Edwards, P.A. and Datiles, M.B. and Unser, M. and Trus, B.L.
	and Freidlin, V. and Kashima, K.",
TITLE="Computerized Cataract Detection and Classification",
JOURNAL="Current Eye Research",
YEAR="1990",
volume="9",
number="6",
pages="517--524",
month="June",
note="")

© 1990 Current Eye Research. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from Current Eye Research. This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder.
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