Age-related Macular Degeneration (AMD) occurs in “dry” and “wet” forms. 90% of AMD patients suffer from the “dry” form. Dry AMD results in slow progressive loss of central vision. The condition develops as the light-sensitive cells in the macula slowly break down with age.
Wet AMD, also known as exudative or neo-vascular AMD, is caused by the growth of small, abnormal blood vessels under the retina in the macula. Wet AMD usually arises from pre-existing dry AMD.
These abnormal blood vessels leak blood, fluid, lipids and protein, resulting in disruption of the normal structure of the retina. If it is not treated, scar tissue form under the macula and central vision is permanently destroyed. The “wet” form commonly results in advanced visual loss within a short period of time.
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