However, near visual acuity may be maintained without correcting the residual refractive error, the authors noted. Luis Fernández-Vega, MD, PhD, and colleagues at Fernández-Vega Ophthalmological ...

Implantation of a collagen copolymer toric phakic lens was shown to be predictable and effective in correcting myopia and astigmatism in eyes with keratoconus, a study showed. Minimally invasive ...

NEW ORLEANS — A new extended-range-of-vision intraocular lens fared well in terms of visual acuity in a prospective, bilateral, randomized, patient- and investigator-masked trial conducted at 15 sites ...

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 ...