Ferdinand Monoyer: The Discoverer of Monoyer Chart & Diopter

Eye is very beautiful gift of our creature. We can’t imagine our life without eye. So we need to go for regular eye check up and treatment for take care of this beautiful creation. when we go for an eye check up then always Ophthalmologist give us for reading a chart. Do you ever think that who discovered this chart or What’s the theory behind this?


Yes of Course, Article’s aim to awaring everyone about The famed French ophthalmologist Ferdinand Monoyer who discovered Monoyer Chart and diopter.

Monoyer chart contains some alphabates that are using for regular eye test.

Diopter a unit of measurement for vision still used today.

Who was Ferdinand Monoyer?

Ferdinand Monoyer was born in France in 1836, discoverer of the way how can we measure eye sight. He grew up in Lyon before moving to the University of Strasbourg in 1871. He eventually returned to Lyon, were he died aged 76 in 1912.

His best known research is creating the Monoyer chart and diopter for measurement of visual activity since 1872.

According to google research we can easily read the name in monoyer chart. Monoyer actually add his own name in the test he used. The first letter of each line, from the second row through the sixth, spells out his last name. The last letter from each line, beginning at the second through the 10th line, spells out his first name.

Monoyer died in his hometown on July 11, 1912, at the age of 76. Medical science bows with respect and always be grateful for giving us a way to correct our eyes problem and measurement eye vision.

Ferdinand Monoyer: The man who corrected a million vision

In daily life we use so many things and way for solving our problem or we can say use someone’s discovery . But our busy schedule never give us time to focus on dedication and labour of someone’s research. Ferdinand Monoyer is also one of them who gave direction to ophthalmic department and but some people know his name.

Although his best-known achievements were made over 140 years ago, his work is still important today, especially for those who need glasses.

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