Optical illusions with hidden images are amazing for testing your visual powers. These illusion images challenge your brain's ...

Theta 1 and Theta 2 Orionis are two multiple-star systems within the Orion Nebula (M42). Theta1 includes several stars; the four brightest comprise the Trapezium star cluster at the heart of M42. To ...

Please provide your email address to receive an email when new articles are posted on . A review found that OCT and visual acuity were among the most popular benchmarks in the management of diabetic ...

July 15, 2009 — Current evidence is insufficient to determine the balance of benefits and harms of visual acuity screening for the improvement of outcomes in older adults, according to a position ...

Please provide your email address to receive an email when new articles are posted on . Perceptual learning significantly improved spectacle-corrected distance visual acuity. Patients assigned to ...

Impaired vision and blindness are common. About 3.4 million people in the US are blind or visually impaired. Vision is usually measured by visual acuity charts, and normal vision is expressed as 20/20 ...

Best corrected visual acuity improved 9.8 letters with lamivudine after 4 weeks, decreased 1.8 letters with placebo. HealthDay News — For patients with center-involved diabetic macular edema (CI-DME), ...

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 ...