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 ...

"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 ...

Researchers developed regression formulas that may be clinically beneficial for estimating visual prognosis after astigmatic correction and determining the surgical indication of astigmatic correction ...

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 ...