<P> Macular degeneration, also known as age - related macular degeneration (AMD or ARMD), is a medical condition which may result in blurred or no vision in the center of the visual field . Early on there are often no symptoms . Over time, however, some people experience a gradual worsening of vision that may affect one or both eyes . While it does not result in complete blindness, loss of central vision can make it hard to recognize faces, drive, read, or perform other activities of daily life . Visual hallucinations may also occur and these do not represent a mental illness . </P> <P> Macular degeneration typically occurs in older people . Genetic factors and smoking also play a role . It is due to damage to the macula of the retina . Diagnosis is by a complete eye exam . The severity is divided into early, intermediate, and late types . The late type is additionally divided into "dry" and "wet" forms with the dry form making up 90% of cases . </P> <P> Prevention includes exercising, eating well, and not smoking . Antioxidant vitamins and minerals do not appear to be useful for prevention . There is no cure or treatment that returns vision already lost . In the wet form, anti-VEGF medication injected into the eye or less commonly laser coagulation or photodynamic therapy may slow worsening . Supplements in those who already have the disease may slow progression . </P> <P> In 2015 it affected 6.2 million people globally . In 2013 it was the fourth most common cause of blindness after cataracts, preterm birth, and glaucoma . It most commonly occurs in people over the age of fifty and in the United States is the most common cause of vision loss in this age group . About 0.4% of people between 50 and 60 have the disease, while it occurs in 0.7% of people 60 to 70, 2.3% of those 70 to 80, and nearly 12% of people over 80 years old . </P>

Treatment for neovascular age-related macular degeneration is called
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