Types of Age-related macular degeneration Types list: The list
of types of Age-related macular degeneration mentioned in
various sources includes: - Dry AMD - 90% of cases, one eye at a
time. - Wet AMD - only 10% of cases, but more severe, rapid
deterioration. Types discussion: AMD occurs in two forms: Dry
AMD--Ninety percent of all people with AMD have this type.
Scientists are still not sure what causes dry AMD. Studies
suggest that an area of the retina becomes diseased, leading to
the slow breakdown of the light-sensing cells in the macula and
a gradual loss of central vision. Wet AMD--Although only 10
percent of all people with AMD have this type, it accounts for
90 percent of all blindness from the disease. As dry AMD
worsens, new blood vessels may begin to grow and cause "wet"
AMD. Because these new blood vessels tend to be very fragile,
they will often leak blood and fluid under the macula. This
causes rapid damage to the macula that can lead to the loss of
central vision in a short period of time. AM