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 ...

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 ...

Unfortunately, this book can't be printed from the OpenBook. If you need to print pages from this book, we recommend downloading it as a PDF. Visit NAP.edu/10766 to get more information about this ...

Fundus photographs of eyes with diabetic macular edema (DME) could be used to estimate best-corrected visual acuity (BCVA) when artificial intelligence examines the pictures. Best-corrected visual ...

Please provide your email address to receive an email when new articles are posted on . Patients can get frustrated when personal experience does not match objective measurements. Self-reported visual ...

Please provide your email address to receive an email when new articles are posted on . Dyop and ETDRS results were comparable under photopic conditions. However, Dyop results were worse under mesopic ...

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 ...

The principle of WHOeyes is based on how an eye care professional would assess visual acuity using a conventional chart in a clinical setting. The accuracy and usability of the app were tested in ...

Background Infectious keratitis (IK) is a leading cause of corneal blindness globally. While treatment can limit infection-related complications, the timeline and predictors of visual recovery in IK ...