Assessment of visual acuity (VA) has been shown to vary between tests, which may be attributable in part to test inaccuracies, such as a change in the distance between the chart and subject. Therefore ...

A color vision test, also known as the Ishihara color test, measures your ability to tell the difference among colors. If you don’t pass this test, you may have poor color vision, or your doctor may ...

The 10-minute eye test that can protect your vision. Dr. Parul Sony reveals early signs you should never ignore to save your sight. TheHealthSite.com ...

A smartphone-based test for visual acuity is as accurate and repeatable as currently available standard visual acuity tests, according to a new study published online May 28 in JAMA Ophthalmology. The ...

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 ...

November 19, 2007 (New Orleans) — The Brückner test (BT) was suggested as a screening option for children who could not receive the usual methods of screening in a study presented here at the American ...

WILMINGTON -- Do you remember in school lining up with your class to take a vision test using the Snelling Chart -- big letters at the top, smaller letters in bottom rows? Something new has come to ...

British ophthalmologist Andrew Bastawrous moved his family from London to Kenya in 2013 with $150,000 of equipment, a team of 15 people and an ambitious goal: to understand the causes of blindness in ...

Getting regular vision tests is a good practice for maintaining good vision. However, doing so requires setting aside time to visit an eye doctor, a luxury many people don't have. Eyebot hopes to ...