A visual acuity test is an eye exam that checks how well you see the details of a letter or symbol from a specific distance. Visual acuity refers to your ability to discern the shapes and details of ...

The impression exists that picture acuity scores may overestimate function when subjects are switched to letter charts. This has not been systematically investigated. The aims of this study were to ...

To compare the level of visual acuity with crowded and uncrowded versions of the logMAR acuity test and the Kay picture test in amblyopia. The principle goal of this study is to use a cross-sectional ...

A new study shows potential for eye tests to be conducted easily and affordably using a smartphone app. An app to test eyesight easily and affordably using a smartphone is as accurate as traditional ...

What is the farthest a human can see? What is the best recorded visual acuity? How far is the horizon? I am often asked these questions by clinicians and non-ophthalmologists and thought many of you ...

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 ...