PHILADELPHIA — A hand-held internally illuminated ETDRS device provided accurate and repeatable visual acuity measurements, according to a study presented here. “Despite the FDA requiring ETDRS vision ...

Please provide your email address to receive an email when new articles are posted on . Results showed a high level of concordance between OdySight and standard ETDRS measurements. The average ...

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 ...

WHEN testing visual acuity with Snellen's current type, we use black letters printed upon a white ground, and the transition from black to white is as abrupt as can be. If the patient's eyes are ...

Visual impairment was objectively measured via vision tests and categorized based on 3 thresholds: visual acuity worse than 20/40, 20/80, or 20/100. Participants also self-reported visual impairment ...

Measuring visual acuity and intraocular pressure at 5 years after diagnosis, and checking for conditions such as nystagmus ...

Improving air quality may safeguard children's vision, with findings revealing a strong connection between pollution and ...

Visual acuity is a measure of how small a detail that is visible can be, and still be identified by a person. The most common way of testing vision is to use an eye chart, (the kind that you see in an ...

Leber hereditary optic neuropathy (LHON) is a genetic mitochondrial disorder that damages retinal ganglion cells, resulting in rapid vision loss. Idebenone is expected to restore mitochondrial ...