What does 20/20 vision mean? 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 ...

Impaired vision and blindness are common. About 3.4 million people in the US are blind or visually impaired. Vision is usually measured by visual acuity charts, and normal vision is expressed as 20/20 ...

Most people should have a regular eye exam every couple of years. If you're older than 65 or have certain conditions, you may need more frequent checks. (Photo Credit: iStock/Getty Images.) Many eye ...

A routine (or comprehensive) exam uses a wide range of tests and procedures to evaluate your vision and the health of your eyes. Diagnostic tests are usually performed by a technician. These test ...

One would think that having normal 20/20 vision is due mainly to the anatomical characteristics of the eye. According to a new study, however, tiny eye movements play a large role – and the findings ...