What causes age-related macular degeneration?
Dry AMD is caused by the gradual break down of light-sensitive cells in the macula over several years. Wet AMD is caused by the growth of blood vessels underneath the macula, which can leak or cause scarring.
It is not known why this is, but it tends to happen as people get older. There are also several risk factors associated with macular degeneration:
- Family history
As it’s an age-related process, it usually involves both eyes, although they may not be affected at the same time.