When you visit your doctor or an eye care professional, you may be asked to read an eye chart. You may be told you have normal 20/20 vision. What does that really mean? An eye chart measures ...

At least once in your life, you must have squinted at the eye chart at the doctor’s office or DMV, trying to make out the blurry bottom line. The test seems simple enough, right? Read a random ...

The eye chart you’ve known for your whole life is a lie. Because the letters you read off of it don’t actually make up a whole alphabet. While you’ve probably never noticed it from the ...

This eye test chart was first invented by Ferdinand Monoyer, a French opthalmologist, or eye doctor, who would have been 181 years old today. Born on 9 May 1836 in Lyon, Monoyer studied medicine ...

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 ...