Help docs! i'm trying to find out what causes macular degeneration?

Age: The most common kind of macular degeneration, age-related macular degeneration, has no known cause. It is associated with age, female gender, blue eyes, white race, smoking, high cholesterol, not eating fish and many other factors.

AMD: There are multiple causes of macular degeneration and are usually age and history dependent. Most commonly in those over 55 is age-related macular degeneration. In younger patients, there may be hereditary causes. Trauma, infection and inflammation may also cause various forms of macular degeneration as well.