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The Oxford modular cataract image analysis system.

J M Sparrow·N A Brown·G A Shun-Shin·A J Bron
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Abstract

A modular system of acquisition and analysis of Scheimpflug, retro-illumination and fluorescence images of the in vivo human crystalline lens is described. Image analysis is directed towards the following goals: Scheimpflug slit-images are analysed for: (1) The optical density of nuclear cataract present; (2) The dimensions of the lens and the lenticular zones; (3) The curvatures of the lens and lenticular zones. Retro-illumination images are analysed for: (1) The percentage area which is occupied by cataract; (2) A combined measure (weighted integral) describing both the amount of cataract present and its optical density. Lenticular auto-fluorescence images are analysed for the mean density (fluorescence) of the lens as a whole. A pilot study of the repeatability of the methods is presented.

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CataractHumansImage Processing, Computer-AssistedLens, CrystallineMicrocomputersJournal Article

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J M Sparrow, N A Brown, G A Shun-Shin, A J Bron. 1990. The Oxford modular cataract image analysis system.. https://doi.org/10.1038/eye.1990.89

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