A continuous visual analog scale has a high degree of sensitivity and discriminating capacity that detects smaller symptom changes in dry eye syndrome, according to a review by Charles W. McMonnies, ...

Purpose The purpose of this study was to examine the psychometric properties of a single-item visual analog scale (VAS) to measure goals of care in patients with advanced cancer. Methods Data were ...

Open angle glaucoma (OAG), one of the leading causes of blindness, affects about 45 million individuals worldwide - about three million in the US - with that number projected to increase to 53 million ...

Diabetic retinopathy is a common complication of diabetes and a leading cause of blindness among the working-age population. A new study in the American Journal of Pathology reports that visual ...