Eye doctor Herman Snellen (Dutch, 1834–1908) developed the most commonly used eye chart in the 1860s. The now iconic Snellen chart contains 11 rows of capital letters decreasing in size as the eye ...

This eye test chart was first invented by Ferdinand Monoyer, a French opthalmologist, or eye doctor, who would have been 181 years old today. Who was Ferdinand Monoyer?

In the doodle, viewers can see a pair of cat-eye frames with an eye chart in the background. The eye chart also contains the words "Happy 116th Birthday Altina Schinasi!" Altina's legacy will ...