A new pediatric eye chart successfully measured visual acuity in patients aged 6 to 16 years with vision ranging from 20/16 to 20/200, a study found. The Handy Eye Chart uses four hand gesture ...

January 18, 1908, is the anniversary of the death of Dutch ophthalmologist Herman Snellen, who created the familiar test for visual acuity And now a page from our "Sunday Morning" Almanac, January ...

Visual acuity (VA) was assessed using the ETDRS chart (with best correction) as well as by the PAM. Retinal thickness and sensitivity was measured by an automatic fundus perimetry/tomography system.

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 ...

A novel, at-home test was accurate and reliable in measuring near visual acuity and may be a helpful self-monitoring tool for patients with chronic ocular conditions or limited access to ...

Eye charts are designed to test visual acuity, or clarity of vision. Each chart design has limitations and advantages, depending on the clinical setting, patient profile, and diagnostic objective.

LogMAR visual acuity measurements are recognised as being far superior to Snellen chart measurements in terms of precision and repeatability, and testing with these charts would become far more ...

Results from smartphone-based Snellen charts, which are eye charts used to measure visual acuity, are not consistent with results from standard Snellen visual acuity chart tests, according to a study ...

Carmine Mazzarella, an optician and owner of the Saugus Pearle Vision, recently dropped by Belmonte to give the school a visual acuity chart. He also came armed with vouchers to help students.

Finely tuned eye movements are instrumental in enhancing visual acuity, according to findings of a study published in Nature Communications.

The electronic form of low contrast acuity letter chart we used in this study combines contrast sensitivity with visual acuity testing and is quick and easy to administer.

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 ...