For ophthalmology outpatients, the mean difference in visual acuity was 0.10 logMAR, or one line on a conventional logMAR sight chart, between the HAT outcomes and the last in-clinic visual acuity ...

Development and Validation of a Smartphone-Based Visual Acuity Test (Peek Acuity) for Clinical Practice and Community-Based Fieldwork. JAMA Ophthalmology , 2015; DOI: 10.1001/jamaophthalmol.2015.1468 ...

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, ... Unlike the Thumbs-Up test, the new chart employs .

To aid in this transition, researchers in England tested the repeatability of visual acuity (VA) measured using the Home Acuity Test (HAT) among 50 control participants and 100 ophthalmology patients.

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.

To give you a feeling about how poor this vision is, you should know that if your visual acuity is worse than 20/40 you would fail the standard vision test given when you apply for a driver's ...

‘Visual’ Acuity of the Congenitally Blind Using Visual-to-Auditory Sensory Substitution. PLoS ONE , 2012; 7 (3): e33136 DOI: 10.1371/journal.pone.0033136 Cite This Page : ...

To evaluate the relationship between visual acuity as measured by the Early Treatment Diabetic Retinopathy Study (ETDRS) chart and by the potential acuity meter (PAM) with retinal thickness and ...

AUCKLAND, New Zealand--(BUSINESS WIRE)--Objective Acuity has reached a significant milestone in its development of the world’s first, objective, visual acuity test. It has successfully concluded ...

The chart consists of 11 rows of block letters, where each line displays increasing numbers of letters in decreasing sizes. Normally, visual input changes with eye movements.