Abstract: the abnormal nutritional metabolism in myopia changes the capsular permeability of the lens, and the lens is gradually turbid due to nutritional and metabolic disorders. The visual acuity is gradually reduced, resulting in complicated cataract. This kind of cataract develops slowly, mainly core opacity and posterior capsule opacity.
myopia puzzles many people. When myopia develops to a certain extent, it will cause some complications. Many people may not pay attention to some complications. Eye diseases are caused by myopia. With the increase of myopia, what are the eye diseases caused by myopia? Here is a detailed introduction for you.
myopia has abnormal intraocular nutrition metabolism, which changes the capsule permeability of the lens, gradually produces turbidity due to lens dystrophy and metabolic disorder, and gradually reduces vision, resulting in concurrent cataract. This kind of cataract develops slowly, mainly core opacity and posterior capsule opacity.
2. Retinal detachment
are the most common complications of myopia. Due to axial elongation and intraocular dystrophy in myopia, cystic degeneration and lattice degeneration often occur around the retina. The retina in the degenerative area is very thin and prone to perforation. Some have been perforated and formed in sexual holes. In addition, vitreous liquefaction and increased mobility lead to retinal detachment. In retinal detachment, 70% are myopia.
3. Macular hemorrhage and macular degeneration
myopia has poor ocular blood supply and retinal ischemia. The retina produces a kind of neovascular growth factor. These factors make the subretinal neovascularization grow. The wall of these neovascularization tubes is very thin and easy to rupture and bleed. Macular hemorrhage is formed after bleeding. After the bleeding is absorbed, the new blood vessels can rupture and bleed again. After multiple bleeding, short marks are formed locally, causing macular degeneration, which permanently damages vision.
myopia have abnormal filter curtain structure at the atrial angle, so the outflow resistance of aqueous humor is large, which is easy to cause the increase of intraocular pressure. According to statistics, 30% of high myopia have glaucoma, which will cause the gradual loss of vision.
5. Strabismus and amblyopia
myopia can cause exotropia or exotropia. If the difference of myopia degree between two eyes is greater than 300 degrees, it is easy to cause exotropia and amblyopia with deep degree.