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  2. Eye injuries during general anaesthesia - Wikipedia

    en.wikipedia.org/wiki/Eye_injuries_during...

    The incidence of eye injuries during general anaesthesia has been studied, and different methods of eye protection have been compared. [citation needed] When eyes are untaped during general anaesthesia, the incidence of ocular injury has been reported to be as high as 44%. [ 1][ 2] If tape is used to hold the eyes closed, ocular injury occurs ...

  3. Heterochromia iridum - Wikipedia

    en.wikipedia.org/wiki/Heterochromia_iridum

    Heterochromia iridum. Heterochromia is a variation in coloration most often used to describe color differences of the iris, but can also be applied to color variation of hair [ 1] or skin. Heterochromia is determined by the production, delivery, and concentration of melanin (a pigment ). It may be inherited, or caused by genetic mosaicism ...

  4. Biological effects of high-energy visible light - Wikipedia

    en.wikipedia.org/wiki/Biological_effects_of_high...

    Blue light, a type of high-energy light, is part of the visible light spectrum. High-energy visible light (HEV light) is short-wave light in the violet/blue band from 400 to 450 nm in the visible spectrum, which has a number of purported negative biological effects, namely on circadian rhythm and retinal health (blue-light hazard), which can lead to age-related macular degeneration.

  5. Monochromacy - Wikipedia

    en.wikipedia.org/wiki/Monochromacy

    Monochromacy (from Greek mono, meaning "one" and chromo, meaning "color") is the ability of organisms to perceive only light intensity without respect to spectral composition. Organisms with monochromacy lack color vision and can only see in shades of grey ranging from black to white. Organisms with monochromacy are called monochromats.

  6. List of Craig of the Creek episodes - Wikipedia

    en.wikipedia.org/wiki/List_of_Craig_of_the_Creek...

    Craig of the Creek is an American animated television series created by Matt Burnett and Ben Levin for Cartoon Network.The show's pilot episode premiered on the Cartoon Network app on December 1, 2017, and the first episode of its first season ("Itch to Explore") was previewed there on February 19, 2018, before officially premiering on Cartoon Network on March 30 of that year, alongside its ...

  7. Purkinje effect - Wikipedia

    en.wikipedia.org/wiki/Purkinje_effect

    An animated sequence of simulated appearances of a red flower (of a zonal geranium) and background foliage under photopic, mesopic, and scotopic conditions. The Purkinje effect or Purkinje phenomenon (Czech: [ˈpurkɪɲɛ] ⓘ; sometimes called the Purkinje shift, often pronounced / p ər ˈ k ɪ n dʒ i /) [1] is the tendency for the peak luminance sensitivity of the eye to shift toward the ...

  8. Color blindness - Wikipedia

    en.wikipedia.org/wiki/Color_blindness

    Frequency. Redgreen: 8% males, 0.5% females (Northern European descent) [ 2] Color blindness or color vision deficiency ( CVD) is the decreased ability to see color or differences in color. [ 2] The severity of color blindness ranges from mostly unnoticeable to full absence of color perception. Color blindness is usually an inherited problem ...

  9. What Causes Dry Patches On Your Face? - AOL

    www.aol.com/causes-dry-patches-face-180000143.html

    Environmental Exposure. Drastic weather changes are a common cause of dry skin. Extremely cold weather can make it more difficult for your skin to retain moisture. Low humidity in the air creates ...