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 ...

Please provide your email address to receive an email when new articles are posted on . A new contrast sensitivity test demonstrated high reliability in identifying patients with glaucoma, according ...

Monocular contrast sensitivity and microperimetry are useful indicators of visual function and its impact on activities of daily living in those with AMD. Patients with AMD do not rely on binocular ...

Please provide your email address to receive an email when new articles are posted on . Objective measures of contrast sensitivity and visual distortion can be used to assess the impact of macular ...

A contrast dye allergic reaction can occur after a diagnostic imaging test, such as magnetic resonance imaging (MRI) or computed tomography (CT) scan. The contrast dye used with these tests is an ...