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  2. Color blindness - Wikipedia

    en.wikipedia.org/wiki/Color_blindness

    These color charts show how different color blind people see compared to a person with normal color vision. [ dubious – discuss ] Much terminology has existed and does exist for the classification of color blindness, but the typical classification for color blindness follows the von Kries classifications, [ 26 ] which uses severity and ...

  3. Visual impairment - Wikipedia

    en.wikipedia.org/wiki/Visual_impairment

    Such software can assist blind people with orientation and navigation, but it is not a replacement for traditional mobility tools such as white canes and guide dogs. Some blind people are skilled at echolocating silent objects simply by producing mouth clicks and listening to the returning echoes. It has been shown that blind echolocation ...

  4. Recovery from blindness - Wikipedia

    en.wikipedia.org/wiki/Recovery_from_blindness

    Recovery from blindness is the phenomenon of a blind person gaining the ability to see, usually as a result of medical treatment. As a thought experiment , the phenomenon is usually referred to as Molyneux's problem .

  5. Blindsight - Wikipedia

    en.wikipedia.org/wiki/Blindsight

    Blindsight is the ability of people who are cortically blind to respond to visual stimuli that they do not consciously see due to lesions in the primary visual cortex, also known as the striate cortex or Brodmann Area 17. [1] The term was coined by Lawrence Weiskrantz and his colleagues in a paper published in a 1974 issue of Brain. [2]

  6. Color blind grandson and grandpa see certain colors for the ...

    www.aol.com/news/2015-12-07-color-blind-grandson...

    Kohen can even play sports in them. They were developed by Dr. Don Pherson and his team. They do have a bit of a back log, but are available to people for about $400. Valspar Color For The Colorblind:

  7. Stereoblindness - Wikipedia

    en.wikipedia.org/wiki/Stereoblindness

    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.

  8. A new surgery can give legally blind people 20/20 vision - AOL

    www.aol.com/news/2016-12-15-a-new-surgery-can...

    Eyesight is arguably one of the most devastating senses a person can lose, and damaging it is all too common. According to the CDC, 3.4 million Americans aged 40 or over are considered legally ...

  9. Guide dog - Wikipedia

    en.wikipedia.org/wiki/Guide_dog

    A blind woman learns to use her guide dog in a test environment. Guide dogs (colloquially known in the US as seeing-eye dogs [1]) are assistance dogs trained to lead blind or visually impaired people around obstacles. Although dogs can be trained to navigate various obstacles, they are red–green colour blind and incapable of interpreting ...

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