Visual acuity is a measure of how small a detail that is visible can be, and still be identified by a person. The most common way of testing vision is to use an eye chart, (the kind that you see in an ...

Please provide your email address to receive an email when new articles are posted on . Mobile apps can successfully mimic paper-based visual function tests, results showed. Such apps may expand ...

Three visual acuity tests taken at home produce results comparable to those achieved with standard tests taken in the office, researchers say. All the tests are free. Two measure near vision, and the ...

Medically reviewed by Christine L. Larsen, MD Key Takeaways Being legally blind means having central visual acuity of 20/200 ...