![]() Some also include those who have a decreased ability to see because they do not have access to glasses or contact lenses. Visual impairment, also known as vision impairment or vision loss, is a decreased ability to see to a degree that causes problems not fixable by usual means, such as glasses. Vision rehabilitation, changes in the environment, assistive devices ( eyeglasses, white cane) Uncorrected refractive errors, cataracts, glaucoma Non-24-hour sleep–wake disorder, falls in older adults ![]() ![]() A white cane, the international symbol of blindness
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