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Macular Degeneration Information
- Macular degeneration is a medical condition where the light sensing cells in the macula malfunction and over time cease to work. According to the American Academy of Ophthalmology, it is the leading cause of central vision loss (blindness) in the United States today for those over the age of fifty. There are two basic types of the disease: Standard Macular Degeneration (MD) and Age Related Macular Degeneration (ARMD), with ARMD being the most common form of the condition. Macular degeneration that is not age related is most commonly caused by an inherited condition. These forms are sometimes called Juvenile macular degeneration (JMD). In macular degeneration the final form results in missing or blurred vision in the central, reading part of vision. The outer, peripheral part of the vision remains intact...
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ARMD is further divided into a "dry," or nonexudative, form and a "wet," or exudative, form. Eighty five to ninety percent of cases are categorized as "dry" macular degeneration where fatty tissue, known as drusen, will slowly build up behind the retina. Ten to fifteen percent of cases involve the growth of abnormal blood vessels under the retina. These cases are called "wet" macular degeneration due to the leakage of blood and other fluid from behind the retina into the eye. Wet macular degeneration usually begins as the dry form. If allowed to continue without treatment it will completely destroy the macula. Medical, photodynamic, laser photocoagulation and laser treatment of wet macular degeneration are available.
During the early stages of the disease, the neural layers of the retina remain relatively unaffected. This fact makes it a possible target for treatment with a retinal prosthesis, which are currently under development. Recently, the drug Lucentis has been cleared by the FDA for use in the treatment of AMD. Lucentis has been shown to not only halt the progession of the disease, but also works to reverse its effects-- and over time improve the patient's vision.
- Click to expand
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To eat fat, or not to eat fat: that is the question. If you are
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Ask several experts if carrots are good for your eyesight and you
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Age-related macular degeneration (AMD) is the leading cause of
blindness in Americans over the age of 60. Prevention of AMD is key
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