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  2. Visual snow syndrome - Wikipedia

    en.wikipedia.org/wiki/Visual_snow_syndrome

    Poor quality of vision, Photophobia, Heliophobia, Depersonalization and Derealization [2] Usual onset: Visual Snow can appear at any time, but it commonly appears at birth, late teenage years, and early adulthood. Causes: Unknown, [3] hyperexcitability of neurons and processing problems in the visual cortex [4] [5] Risk factors

  3. Color blindness - Wikipedia

    en.wikipedia.org/wiki/Color_blindness

    Color blindness is usually an inherited problem or variation in the functionality of one or more of the three classes of cone cells in the retina, which mediate color vision. [2] The most common form is caused by a genetic condition called congenital red–green color blindness (including protan and deutan types), which affects up to 1 in 12 ...

  4. Cyanopsia - Wikipedia

    en.wikipedia.org/wiki/Cyanopsia

    Human Eye. Cyanopsia is a rare visual phenomenon characterized by a blue tint to vision. Most commonly associated with cataract surgery and certain medications, such as sildenafil, cyanopsia is typically a temporary side effect rather than a standalone disease.

  5. Overview of common vision problems and medications - AOL

    www.aol.com/overview-common-vision-problems...

    Medication is not always necessary or the best choice for treating a vision problem, and sometimes, medication isn't an option at all. But in many cases, it can certainly help with vision problems ...

  6. 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 ...

  7. List of systemic diseases with ocular manifestations - Wikipedia

    en.wikipedia.org/wiki/List_of_systemic_diseases...

    An ocular manifestation of a systemic disease is an eye condition that directly or indirectly results from a disease process in another part of the body. There are many diseases known to cause ocular or visual changes.

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