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As of 2015, there were 940 million people with some degree of vision loss. [5] 246 million had low vision and 39 million were blind. [1] The majority of people with poor vision are in the developing world and are over the age of 50 years. [1] Rates of visual impairment have decreased since the 1990s. [1]
For example, some people with visual or auditory disabilities who do not wear glasses or hearing aids, or who use discreet hearing aids, may not be obviously disabled. Some people who have vision loss may wear contact lenses .
Deafblind people communicate in many different ways as determined by the nature of their condition, the age of onset, and what resources are available to them. For example, someone who grew up deaf and experienced vision loss later in life is likely to use a sign language (in a visually modified or tactile form). Others who grew up blind and ...
People with astigmatism have more difficulty with night driving and can have a decreased productivity due to errors. However, there are many ways to help correct astigmatisms: The use of glasses or contacts, Toric intraocular lenses, Toric implantable Collamer lenses, and/or corneal refractive surgery have been shown to correct astigmatisms.
When refractive errors in children are not treated, the child may be at risk of developing ambylopia, where vision may remain permanently blurry. [32] Because young children typically do not complain of blurry vision, the American Academy of Pediatrics recommends that children have yearly vision screening starting at three years old so that unknown refractive errors or other ophthalmic ...
Ashton Kutcher is "lucky to be alive" after dealing with a rare autoimmune disorder two years ago that left him unable to hear, see or walk. The That '70s Show alum opens up about his health ...
Colors may eventually become more and more faded, eyes will become more sensitive to light, and sometimes people will have trouble seeing at nighttime. Double vision can occur and the need to change prescriptions often are also common symptoms. Over time, vision loss can occur in people who have well developed, untreated cataracts. [6]
Hearing loss is a partial or total inability to hear. [5] Hearing loss may be present at birth or acquired at any time afterwards. [6] [7] Hearing loss may occur in one or both ears. [2] In children, hearing problems can affect the ability to acquire spoken language, and in adults it can create difficulties with social interaction and at work. [8]
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