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Progress toward developing a cataract classification system.

M C Leske·L T Chylack·R Sperduto·M Pennett·D McCarthy
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Abstract

A cataract classification system is being developed based on a set of standard photographs. The system uses an ordinal scale ranging from 0 (no opacities) to 2 (definite opacities) to classify cataractous changes in the nuclear, cortical, and posterior subcapsular lens zones. The reproducibility of slitlamp-derived and photo-derived classifications using the system was evaluated. The reproducibility between 2 observers for slitlamp-derived classifications was very high (n = 60). The reproducibility within and among 4 photography readers was also good for photo-derived classifications (n = 100). Discrepancies were found between ratings derived from slitlamp examinations and from photographs; such discrepancies were most frequent for gradings of cortical opacities.

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CataractHumansPhotographyComparative StudyJournal ArticleResearch Support, Non-U.S. Gov'tResearch Support, U.S. Gov't, P.H.S.

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M C Leske, L T Chylack, R Sperduto, M Pennett, D McCarthy. 1987. Progress toward developing a cataract classification system.. https://doi.org/10.1159/000414685

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