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In North America and most of Europe, legal blindness is defined as visual acuity (vision) of 20/200 (6/60) or less in the better eye with best correction possible. This means that a legally blind individual would have to stand 20 feet (6.1 m) from an object to see it – with corrective lenses – with the same degree of clarity as a normally ...
The team had 4 patients with right hemisphere damage and 4 patients with left hemisphere damage in the temporo-occipital lobes as well as 26 controls were shown one word at a time on a screen. They were exposed to 20 words of 3 and 5 letters, 12 words of 7 letters. The subjects were asked to read the words as quickly and as accurately as possible.
The Road House star, 43, recently spoke to The Hollywood Reporter about how he's used his legal blindness in his acting. Gyllenhaal has been wearing intensive corrective lenses since he was about ...
One reason that Molyneux's Problem could be posed in the first place is the extreme dearth of human subjects who gain vision after extended congenital blindness. In 1971, Alberto Valvo estimated that fewer than twenty cases have been known in the last 1000 years.
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Dyslexia, previously known as word blindness, is a learning disability that affects either reading or writing. [ 1 ] [ 6 ] Different people are affected to different degrees. [ 3 ] Problems may include difficulties in spelling words, reading quickly, writing words , "sounding out" words in the head , pronouncing words when reading aloud and ...
One eye may perform significantly worse than the other, and depth perception can be very limited (although not necessarily zero). The field of view may be severely limited. [ 3 ] The best vision might be in the centre (like tunnel vision ) but more often it is at some other point, and it is difficult to tell what the person is really looking at.
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