7/1/2023 0 Comments Degenerative myopia bilateralThis abnormal and progressive thinning of the layers of the eyeball is called pathological myopia. All the layers that make up the wall of the eyeball become very thin. In those people with very high myopia and very elongated eyes, the walls of the eyeball have become extremely stretched. This can start in childhood, leading to the need for strong corrective lenses even at a young age. It is thought that very high myopia results from an abnormal and progressive stretching and elongation of the eyeball. Up to -3.0 D is mildly myopic -3.0 to -6.0 D moderately myopic and over -6.0 D is highly myopic. People who are myopic will have a negative dioptre. The strength of prescription lenses is measured in ‘dioptres’ (D). The more severe the myopia the stronger the prescription lens required. To help people with myopia focus in the distance, prescription spectacle or contact lenses have to be worn. People with myopia are unable to focus sharply on distant objects, and are only able to focus sharply if the object is quite close up. As a result, light entering the eyes from a distance is focused in front of the retina, rather than being sharply focused on the retina, resulting in the inability to focus on distant objects. The distance between the front of the eye and the retina at the back of the eye is therefore longer. Myopia is commonly known as short-sightedness people who are myopic have a larger or longer shaped eyeball. Myopic macular degeneration is a type of macular degeneration that occurs in people with severe myopia. Myopia, pathological myopia and myopic macular degeneration
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