19th Century Box Trial Frames is a photograph by Mark Thomas/science Photo Library which was uploaded on September 24th, 2018.
19th Century Box Trial Frames
19th century box trial frames. This set was invented by George Cox in 1838. A trial frame is used to determine an individual's lens prescription for... more
Title
19th Century Box Trial Frames
Artist
Mark Thomas/science Photo Library
Medium
Photograph
Description
19th century box trial frames. This set was invented by George Cox in 1838. A trial frame is used to determine an individual's lens prescription for a pair of glasses. Different ones are tried on until the correct set is found. Photographed at the Royal College of Ophthalmologists, London, UK.
Uploaded
September 24th, 2018
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