Ferdinand Monoyer, Date of Birth, Place of Birth, Date of Death

Ferdinand Monoyer

French ophthalmologist

Date of Birth: 09-May-1836

Place of Birth: Lyon, Auvergne-Rhône-Alpes, France

Date of Death: 11-Jul-1912

Profession: physicist, translator, ophthalmologist

Nationality: France

Zodiac Sign: Taurus

Ferdinand Monoyer (9 May 1836 – 11 July 1912) was a French ophthalmologist, known for introducing the dioptre in 1872. He invented the Monoyer chart, used to test visual acuity.
He inserted his name in the random letters of the chart.
It appears when one reads vertically from bottom to top on each side.