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  2. Adaptation (eye) - Wikipedia

    en.wikipedia.org/wiki/Adaptation_(eye)

    Night vision is of lower quality than day vision because it is limited in resolution and colors cannot be discerned; only shades of gray are seen. [1] In order for humans to transition from day to night vision they must undergo a dark adaptation period of up to two hours [ 2 ] in which each eye adjusts from a high to a low luminescence "setting ...

  3. Effects of long-term contact lens wear on the cornea - Wikipedia

    en.wikipedia.org/wiki/Effects_of_long-term...

    Long-term use of PMMA or thick hydrogel contact lenses have been found to cause increased eye irritability, photophobia, blurred vision, and persistent haloes. [18] There is some evidence to show that rigid gas permeable contact lenses are capable of slowing myopic progression after long-term wear. This same effect was not found in patients who ...

  4. Eye strain - Wikipedia

    en.wikipedia.org/wiki/Eye_strain

    Eye strain, also known as asthenopia (from astheno- 'loss of strength' and -opia 'relating to the eyes'), is a common eye condition that manifests through non-specific symptoms such as fatigue, pain in or around the eyes, blurred vision, headache, and occasional double vision. [1] Symptoms often occur after long-term use of computers, staring ...

  5. Adenoviral keratoconjunctivitis - Wikipedia

    en.wikipedia.org/wiki/Adenoviral_kerato...

    Photophobia develops with blurred vision and lymphadenopathy by the ear nearest the affected eye. [2] It is often associated with a sore throat and stuffy and runny nose, mainly in adults. [3] A type of adenoviral keratoconjunctivitis in very young children can present with a high fever, sore throat, ear infection, vomiting and diarrhea. [3]

  6. What losing vision in one eye helped me understand about ...

    www.aol.com/finance/losing-vision-one-eye-helped...

    Last fall, I lost vision in my right eye. I was close to finishing the article when quite suddenly, all I could see from that eye was an unsteady gray blur. ... and the long-tailed macaques at the ...

  7. Eyes hurt after looking at the sun during Monday's eclipse ...

    www.aol.com/eyes-hurt-looking-sun-during...

    According to the AAO, these are the following symptoms of eye damage people can notice after starring at the sun: Blurry vision. Headache. A blind spot in your central vision in one or both eyes ...

  8. Night vision - Wikipedia

    en.wikipedia.org/wiki/Night_vision

    A specific type of NVD, the night vision goggle (NVG) is a night vision device with dual eyepieces. The device can utilize either one intensifier tube with the same image sent to both eyes, or a separate image intensifier tube for each eye. Night vision goggles combined with magnification lenses constitutes night vision binoculars.

  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.