Here’s another risk factor for developing nearsightedness – focusing inaccuracy. If a child displays inadequate focusing levels, then he or she will be either at moderate or high risk for developing, and worsening, myopia.
Yet another reason to try to slow down how quickly nearsightedness increases is the risk of retinal detachments. Myopia, or nearsightedness, increases the risk of a retinal detachment by 4X-16X’s; the higher the prescription, the higher the risk. The retina is the tissue in the back of the eye that contains all of the nerves, cells and blood vessels that help you see. Surgery can be performed for retinal detachments. However, clinical studies show that patients who have had retinal detachment surgery complain about lower quality of life afterwards. In other words, the surgery was physically successful. However, the patients still suffered decreased quality of life due to visual difficulties afterwards.
Another reason to slow down the progression of nearsightedness is the increased risk of glaucoma. Nearsightedness, or myopia, increases the risk of glaucoma by 4x’s. Glaucoma slowly kills the nerves in the eyes, and is a leading cause of blindness. If someone develops glaucoma, he won’t even notice any changes in how he sees until 30%-50% of the nerves have already died.
Controlling myopia, or nearsightedness, is important because of the associated risks of being nearsighted. For example, a person who is nearsighted is at a 2-5X’s greater risk for developing cataracts. Cataracts are a leading cause of visual impairment in the world. Even though cataract surgery is a fairly common procedure, your own crystalline lenses still work better than the artificial ones.