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

Posts from this topic will be added to your daily email digest and your homepage feed. That familiar eyesight chart revolutionized vision testing, and we went to ridiculous lengths to test it out That ...

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 ...

Visual acuity -- the ability to discern letters, numbers, and objects from a distance -- is essential for tasks including recognizing a friend across a room and driving. Researchers previously assumed ...

Visual acuity--the ability to discern letters, numbers, and objects from a distance--is essential for many tasks, from recognizing a friend across a room to driving a car. Researchers previously ...

Please provide your email address to receive an email when new articles are posted on . The Hadassah Self-Visual Acuity Screener demonstrated high reliability, accuracy and alignment with standard ...

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 ...

A smartphone app was found to be useful and reliable by clinicians when testing vision for children during the COVID-19 pandemic. Assessing vision was found to be easy by families and reliable by ...