Macular Degeneration | Eye Health
What is Macular Degeneration?
Age Related Macular Degeneration, also referred to as ARMD or simply macular degeneration, occurs when the cells in the macula break down causing vision loss in the central part of the field of vision. Most often ARMD is a slow, progressive and painless disease affecting both eyes. There are two main types of ARMD: Dry (atrophic) ARMD and Wet (exudative) ARMD.
Dry ARMD accounts for 90% of all patients diagnosed with this disease. Dry ARMD occurs when small deposits, called drusen, begin to accumulate under the macula. These deposits gradually break down the light sensing cells in the macula, causing distorted vision. It is important to monitor dry ARMD closely as it can lead to the more aggressive form called Wet ARMD.
Wet ARMD occurs when tiny, new, abnormal blood vessels begin to grow behind the retina toward the macula. These blood vessels often leak blood and fluid that can damage the macula, causing rapid and severe vision loss. Wet ARMD always occurs in patients who already have dry ARMD.