Journal article

[A simplified screening test for the identification of individuals with diminished vision in developing countries].

JE Keeffe, JE Lovie-Kitchin, H Maclean, HR Taylor

Rev Panam Salud Publica | Published : 1998

Abstract

Simple but effective tests have been produced for screening subjects with low vision in developing countries. These tests of distance and near vision, based on the E test, were evaluated and validated in trials with people aged 4-90 years, and have been field tested in the health, education and rehabilitation services in 32 developing countries. Their sensitivity and specificity as screening tools for low vision have been calculated: sensitivity of 85% and specificity of 96% for the distance vision test, and sensitivity of 100% and specificity of 84% for the near vision test. The content and format of the tests have been demonstrated to be appropriate for developing countries, and their effe..

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