Results from smartphone-based Snellen charts, which are eye charts used to measure visual acuity, are not consistent with results from standard Snellen visual acuity chart tests, according to a study ...

There doesn’t seem to be any type of antique that isn’t sold at auctions, flea markets or shops. We were surprised years ago at a flea market when a dealer was offering a wooden artificial leg. It was ...

An Amsler grid, also known as an Amsler grid test, is a tool you can use at home to test your eyes for vision problems. It’s commonly used to test for signs of age-related macular degeneration (AMD).

The Jaeger chart was designed to test near vision acuity. Eduard Jaeger von Jaxtthal (1818–1884) was an Austrian ophthalmologist and a professor at the University of Vienna who, in the 1850s, made ...