Almanac: The eye chart 01:48. And now a page from our "Sunday Morning" Almanac, January 18th, 1908, 107 years ago today . . . the day the Dutch ophthalmologist Herman Snellen died at the age of 73.

Vision specialists today use a version of the Snellen Eye Chart with 11 lines of letters. People are also reading… Walsh Golf Center sold; City Square getting a new cafe - Steve Cahalan ...

Creative agency Anti has produced a custom font called Optician Sans by adding to the ten letters used in historic optotype eye test charts. Unlike the Sloan typeface commonly used to test ...

In his famous eye chart, each row represents a different dioptre, which measures the distance you would have to be from the text to read it. Monoyer also inserted his name into the chart.

The Landolt C eye chart is similar with rows of the letter C, and the tested person indicates in which direction the gap is facing. The Landolt Chart came out in 1888.