Assessment of visual acuity (VA) has been shown to vary between tests, which may be attributable in part to test inaccuracies, such as a change in the distance between the chart and subject. Therefore ...

The aim of the study was to compare the performance of two different COMPlog computerised, single letter scoring, visual acuity (VA) measurements against gold standard Early Treatment Diabetic ...

My graphic design students love to design posters using the classic eye chart composition, and they frequently ask “What typeface should I use for this?” Not having a definitive answer has always been ...

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 ...

The Opternative exam is a bit different than sitting down in an eye doctor's office and squinting to read a chart of letters. First of all, the online test requires you to use both your smartphone, ...

Acuity of vision is a term used to describe the clearness or sharpness of your vision when measured at a distance of 20 feet. ‌ Visual acuity is the most common clinical measurement of how your eyes ...