enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Xanthopsia - Wikipedia

    en.wikipedia.org/wiki/Xanthopsia

    Xanthopsia is a color vision deficiency in which there is a dominantly yellow bias in vision due to a yellowing of the optical media of the eye. The most common causes are digoxin's inhibitory action on the sodium pump, and the development of cataracts which can cause a yellow filtering effect.

  3. Scintillating scotoma - Wikipedia

    en.wikipedia.org/wiki/Scintillating_scotoma

    In teichopsia, migraine sufferers see patterns in the shape of the walls of a star fort. As the scotoma area expands, some people perceive only a bright flickering area that obstructs normal vision, while others describe seeing various patterns. Some describe seeing one or more shimmering arcs of white or colored flashing lights.

  4. Scotoma - Wikipedia

    en.wikipedia.org/wiki/Scotoma

    Common causes of scotomas include demyelinating disease such as multiple sclerosis (retrobulbar neuritis), damage to nerve fiber layer in the retina (seen as cotton wool spots [3]) due to hypertension, toxic substances such as methyl alcohol, ethambutol and quinine, nutritional deficiencies, vascular blockages either in the retina or in the optic nerve, stroke or other brain injury, and ...

  5. If You’re Seeing Spots or Flashes In Your Vision, It Could Be ...

    www.aol.com/means-seeing-spots-flashes-vision...

    Ocular migraines affect your vision in one or both eyes. Here, experts share ocular migraine symptoms, causes, and treatments.

  6. Color blindness - Wikipedia

    en.wikipedia.org/wiki/Color_blindness

    The cause of blue–yellow color blindness is not analogous to the cause of red–green color blindness, i.e. the peak sensitivity of the S-opsin does not shift to longer wavelengths. Rather, there are 6 known point mutations of OPN1SW that degrade the performance of the S-cones. [46] The OPN1SW gene is almost invariant in the human population.

  7. Photopsia - Wikipedia

    en.wikipedia.org/wiki/Photopsia

    It is light-sensitive and communicates visual messages to the brain. If the retina detaches, it moves and shifts from its normal position. This can cause photopsia, but can also cause permanent vision loss. Medical attention is needed to prevent vision loss. Procedures may include laser treatment, freezing, or surgery.

  8. Blurred vision - Wikipedia

    en.wikipedia.org/wiki/Blurred_vision

    Macular degeneration: Macular degeneration cause loss of central vision, blurred vision (especially while reading), metamorphopsia (seeing straight lines as wavy), and colors appearing faded. [11] Macular degeneration is the third main cause of blindness worldwide, and is the main cause of blindness in industrialised countries. [12]

  9. 'Bleeding Eye' Virus Sparks Travel Warning and Worldwide ...

    www.aol.com/bleeding-eye-virus-sparks-travel...

    Symptoms include “sensitivity to light, dizziness, pain behind the eyes, nausea, vomiting, and rash,” the CDC says, while more serious disease includes meningitis, encephalitis, and bleeding.