Night blindness (nyctalopia) refers to considerable difficulty seeing in poor light conditions. Night blindness is not a condition itself but rather a symptom of other types of vision conditions.

Vision loss can result from a number of different conditions, including refractive errors and cataracts. There are 2.2 billion people around the world who live with near or distance vision impairment, ...

Glasses, contacts, or vision correction surgery may improve your vision. Which is right for you depends on the severity and type of vision loss and your overall health, lifestyle, and personal ...

Visual distortions can affect your ability to see normally. Often called visual disturbances, they can cause changes in eyesight, such as blurry or wavy vision. These distortions can have varying ...