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Stereoblindness (also stereo blindness) is the inability to see in 3D using stereopsis, or stereo vision, resulting in an inability to perceive stereoscopic depth by combining and comparing images from the two eyes. Individuals with only one functioning eye have this condition by definition since the visual input of the second eye does not exist.
Oliver Sacks was the first to make the story of Susan Barry, whom he nicknamed "Stereo Sue", known to the general public.. Stereopsis recovery has been reported to have occurred in a few adults as a result of either medical treatments including strabismus surgery and vision therapy, or spontaneously after a stereoscopic 3D cinema experience.
It was estimated by the WHO in 2004 that 314 million people worldwide are vision impaired (from all causes), of whom 45 million are blind. [14] Vision disorders are not often targeted by public health initiatives, as mortality causes take priority. [15]
Many persons lacking stereopsis have (or have had) visible strabismus, which is known to have a potential socioeconomic impact on children and adults. In particular, both large-angle and small-angle strabismus can negatively affect self-esteem , as it interferes with normal eye contact , often causing embarrassment, anger, and feelings of ...
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Walmart would not be the first retailer to deploy body cameras in the U.S. Earlier this year, TJX, the parent company of T.J. Maxx, HomeGoods and Marshalls, began having some employees at its ...
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Dual sensory loss is the simultaneous loss of two senses. Research has shown that 6% of non-institutionalized older adults had a dual sensory impairment, and 70% of severely visually impaired older adults additionally suffered from significant hearing loss. [7] Vision and hearing loss both interfere with the interpretation and comprehension of ...