Front view of an optometer. An optometer is a device used to assess the range and power of vision. The earliest reference to optometry was by English

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Front view of an optometer. An optometer is a device used to assess the range and power of vision. The earliest reference to optometry was by English friar, Roger Bacon (1214-1292) who in 1263 described the use of lenses for those with weak eyes. By the 1900s optometry had become an established profession. This device dates from 1900, England.

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Photo credit: © Science Photo Library / Alamy / Afripics
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Keywords: 1900, 1900s, 20th, antique, background, century, collection, device, devices, england, english, eye, historical, history, instrument, medical, ophthalmic, ophthalmological, ophthalmology, optometer, optometers, optometry, orange, sight, twentieth, vision