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 ...

Sensory systems must maintain sensitivity to small gradations in their inputs despite huge ranges in the absolute strength of those inputs, a combined requirement that far outstrips the limited ...

Please provide your email address to receive an email when new articles are posted on . NEW ORLEANS — Age-related decline in contrast sensitivity may contribute to reduced visibility of obstacles and ...

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 ...