Abstract
This brief text on cataract epidemiology contains short papers from an international meeting held in Japan in 1986. The book contains three sections: (1) an evaluation of cataract classification systems for epidemiology studies; (2) a look at the issues involved in conducting valid cataract prevalence studies; and (3) investigations of cataract risk factors. ... none of the chapters or papers covers its subject in sufficient depth to be cited as a reference. In section 1, there are very brief discussions of four different cataract classification systems, each of which is under development. The difficulty in achieving a consensus in this field is evident. The article by Leske presents preliminary data for the Lens Opacities Classification System, Version II, a system that is being used in several epidemiologic studies today. In section 2, epidemiologists and ophthalmologists from Japan, Bulgaria, China, and India review the epidemiologic studies in their respective countries that pertain
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