In the United States today there are 1.64 million people who are partially sighted and not blind. One important visual aid that has long been ignored by clinicians and others who serve the partially sighted are binoculars. These can be used in the home, in school, while traveling and in many aspects of normal everyday life. Binoculars can be supplemented with specialized equipment to extend and improve their use for a greater variety of visual deficiencies. Although binoculars may not be useful to all partially sighted people, the author urges clinicians to become knowledgeable of this aid and its potential, in the interest of expanding the visual horizons and capabilities of the partially sighted population.
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Samuel M. Genensky (1974) studied this question.