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  2. Schirmer's test - Wikipedia

    en.wikipedia.org/wiki/Schirmer's_test

    Schirmer's test determines whether the eye produces enough tears to keep it moist. This test is used when a person experiences very dry eyes or excessive watering of the eyes. It can cause damage to the cornea. [1] A negative (more than 10 mm of moisture on the filter paper in 5 minutes) test result is normal.

  3. 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 ...

  4. Driving at night can get harder starting as early as your ...

    www.aol.com/lifestyle/driving-night-harder...

    While it may sound surprising, vision changes that affect nighttime driving can begin as early as one's late 20s to early 30s. “Over the last 20 years, we have seen a massive shift with eye ...

  5. Computer vision syndrome - Wikipedia

    en.wikipedia.org/wiki/Computer_vision_syndrome

    A Pacific University research study of 36 participants found significant differences in irritation or burning of the eyes, tearing, or watery eyes, dry eyes, and tired eyes, that were each improved by amber colored lenses versus placebo lenses, [11] but in a follow-up study in 2008, the same team was not able to reproduce the results of the ...

  6. 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.

  7. 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 ...

  8. Dark adaptation threshold - Wikipedia

    en.wikipedia.org/wiki/Dark_adaptation_threshold

    The test determines the threshold, or minimum light intensity required to produce a visual sensation in the child's eye. In order to perform this test, the child is asked to sit in the dark for a half-hour. This allows the eyes to be most sensitive for the test. Once the eyes have fully adapted, the child stands in front of a black projection ...

  9. People are wearing Apple Vision Pro headsets while driving ...

    www.aol.com/finance/people-wearing-apple-vision...

    Since Apple Vision Pro’s Friday release across U.S. stores — with an eye-watering starting price of $3,500 — people have been spotted wearing their headsets courtside at NBA games, at the ...