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  2. Color blindness - Wikipedia

    en.wikipedia.org/wiki/Color_blindness

    Confusion colors are pairs or groups of colors that will often be mistaken by the color blind. Confusion colors for red–green color blindness include: cyan and grey; rose-pink and grey; blue and purple; yellow and neon green; red, green, orange, brown; Confusion colors for tritan include: yellow and grey; blue and green; dark blue/violet and ...

  3. Cerebral achromatopsia - Wikipedia

    en.wikipedia.org/wiki/Cerebral_achromatopsia

    Cerebral achromatopsia is a type of color blindness caused by damage to the cerebral cortex of the brain, rather than abnormalities in the cells of the eye's retina.It is often confused with congenital achromatopsia but the underlying physiological deficits of the disorders are completely distinct.

  4. Eye color - Wikipedia

    en.wikipedia.org/wiki/Eye_color

    In humans, brown is by far the most common eye color, with approximately 79% of people in the world having it. [28] Brown eyes result from a relatively high concentration of melanin in the stroma of the iris, which causes light of both shorter and longer wavelengths to be absorbed. [29] A light brown iris with limbal ring

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

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

    EnChroma makes glasses that help color blind people see more colors. Kohen had to submit a video. ... "I thought it'd be cool because we have the same color blindness and we can now see the same ...

  6. Blue-cone monochromacy - Wikipedia

    en.wikipedia.org/wiki/Blue-cone_monochromacy

    Blue cone monochromacy (BCM) is an inherited eye disease that causes severe color blindness, poor visual acuity, nystagmus, hemeralopia, and photophobia due to the absence of functional red (L) and green (M) cone photoreceptor cells in the retina.

  7. Color vision test - Wikipedia

    en.wikipedia.org/wiki/Color_vision_test

    An Ishihara test image as seen by subjects with normal color vision and by those with a variety of color deficiencies. A pseudoisochromatic plate (from Greek pseudo, meaning "false", iso, meaning "same" and chromo, meaning "color"), often abbreviated as PIP, is a style of standard exemplified by the Ishihara test, generally used for screening of color vision defects.

  8. I'm blind. My eyes are different sizes and colors. Will I ...

    www.aol.com/news/eyes-different-sizes-colors...

    My eyes are different sizes and colors. My right eye is lazy, shriveled and blind; it moves like an out-of-control marble circling a drain. My left eye suffers hemorrhages that can cause episodes ...

  9. Dichromacy - Wikipedia

    en.wikipedia.org/wiki/Dichromacy

    Colors of confusion include blue/purple and green/yellow. [2] Deuteranopia is a severe form of red-green color blindness, in which the M-cone is absent. It is sex-linked and affects about 1% of males. Color vision is very similar to protanopia. [2] Tritanopia is a severe form of blue-yellow color blindness, in which the S-cone is absent. It is ...