Ferdinand Monoyer
French ophthalmologist / From Wikipedia, the free encyclopedia
Ferdinand Monoyer (9 May 1836 – 11 July 1912[1]) was a French ophthalmologist, known for introducing the dioptre in 1872.[2]
Quick Facts Born, Died ...
Ferdinand Monoyer | |
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Born | 9 May 1836 |
Died | 11 July 1912(1912-07-11) (aged 76) Lyon, France |
Nationality | French |
Occupation | ophthalmologist |
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He invented the Monoyer chart, used to test visual acuity.[3] He inserted his name in the random letters of the chart. It appears when one reads vertically from bottom to top on each side.[4]