| Macular Degeneration: Tipology | | Print | |
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Macular degeneration is the dry or atrophic, the most widespread (approximately 80% of cases) and is caused by an "aging" of the retina that loses part of its cells. Normally has a slow and causes difficulties in the vision only after many years. It can however be transformed into a moist, with a sudden deterioration of vision. There is no real treatment for the atrophic macular degeneration. In recent years it has been shown that antioxidants can reduce the risk of progression of the disease. These integrators based on vitamins and minerals that are made for periods of time very long, depending on the optician's prescription. Macular degeneration wet or exudative, is due to the growth of abnormal blood vessels that form the "neovascular membrane, which destroys the retina. Their development is usually accompanied by leakage of blood and serum. Depending on the location and type of membrane, the visual deterioration may be more or less serious and more or less rapid. This type of macular degeneration is usually responsible for a loss of sight worse than the dry form. Treatment of wet form consists of: laser heat treatment, to very few forms in which the neovascular lesion is not central to prevent the little burning of the retina caused by the laser creates a sudden decrease of vision and irrecoverable.Treatment with photodynamic therapy (PDT) widely used for several years and still used by itself or support to other treatments. Exploits the ability of a substance called Verte porfina, injected into a vein of the arm, to be "activated" by a particular type of laser, so you can close the small blood vessels responsible for the lesion of the retina. intravitreal injections of anti-VEGF drugs. These are substances that contain antibodies that destroy the small blood vessels that form the neovascular membrane. There are three different substances: Avastin, Lucentis and Macugen. |
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