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

"This study aimed to evaluate the equivalence of a smartphone-based visual acuity chart with a standard 6-m Snellen visual acuity (6SVA) chart." Researchers first reviewed Snellen chart apps that were ...

Please provide your email address to receive an email when new articles are posted on . Dyop and ETDRS results were comparable under photopic conditions. However, Dyop results were worse under mesopic ...

A noninterventional study found that chart-based assessments of visual function had adequate repeatability but were limited in discriminating between no age-related macular degeneration (AMD) and ...

Please provide your email address to receive an email when new articles are posted on . Visual acuity improved across seven techniques for secondary IOL implantation. Factors associated with better ...

recognize the same faces, a person with poor visual acuity would have to get significantly closer. In the workplace, there is a multitude of tasks in which it is important to see fine details. Some ...

Researchers found that eyeglasses with traditional steps of 0.25D were less effective and less preferred by participants compared with those refracted in 0.05D steps. Eyeglasses manufactured and ...

The testing of vision in infants and children has been treated separately from the testing of adults because infants and children often cannot be tested with the same materials and techniques as ...