Smartphone-based Snellen visual acuity charts has become popularized; however, their accuracy has not been established. This study aimed to evaluate the equivalence of a smartphone-based visual acuity ...

What if you could give yourself a standard eye exam at home? That’s the idea behind [Joel, Margot, and Yuchen]’s final project for [Bruce Land]’s ECE 4760—simulating the standard Snellen eye chart ...

Though dozens of different eye charts have been proposed by assorted experts in half a century, none has displaced the familiar Snellen chart, topped by its king-sized “E”. But this week the American ...

This week’s question was asked by: a close relative. QUESTION:Why is there that big E on the top of eye charts? ANSWER: We can credit Dr. Hermann Snellen, a Dutch ophthalmologist at the Netherlands ...

The Driver and Vehicle Licensing Agency (DVLA) is to update its eye condition guidance but what is the eye test you need to pass? The changes, which are expected within weeks, will require those with ...

Wired took five pairs of binoculars to the countryside, where they were tested for accuracy and ease of use. We then tested them on a Snellen chart, used by eye-care professionals, to log performance ...