Visual Impairment

visual impairment Vision Impairments People catergorized as visually impaired range from individuals with mild visual losses to those with dispirited vision to those who ar totally blind (Winzer,370). Vision impairments does not necessarily mean a total loss of sight. slightly(a) visually impaired person gutter detect light, others can see shapes and forms, and others can see nothing at all. Generally, many an(prenominal) different problems that interfere the retina to form image or the contagion of retinal images to the brain can cause blindness or vision impairment. It can be heredity or caused by disease or damage after birth.

In some cases a specific reason cannot be determined. There be four major types of vision impairments. The first type are refractive errors. It is cause by the change of shape or size of the eyeball, conera or the lens. Myopia (short-sighted) and hyperopia (long-sighted) are two common examples. People with myopia or hyperopia cannot commission image accurately on the retina. A...If you want to get a full essay, order it on our website: Orderessay

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