Macula Degeneration typically causes gradual loss or distortion of central vision.
It often occurs in patients who are in good health but is progressive with advancing age. One eye may be more affected than the other. The so-called dry form occurs in 80% of cases. Occasionally abnormal blood vessels beneath the macula can bleed (wet form) causing scarring and profound loss of vision. If detected early visual loss can be halted with regular shots in the back of the eye. Sometimes a membrane can develop causing a wrinkle which can be surgically removed. Patients with macula degeneration should be on a program of vitamin supplements and self-monitoring their own vision with an Amsler grid.
Video courtesy of the American Academy of Ophthalmology