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  2. Cyanopsia - Wikipedia

    en.wikipedia.org/wiki/Cyanopsia

    The primary causes include post-cataract surgery, certain medications, and, less commonly, neurological or ophthalmological conditions. Post-cataract surgery is a common cause, as replacing the natural lens with a synthetic one increases exposure to blue light, leading to temporary blue-tinted vision. This effect usually resolves as the eye adapts.

  3. Color of water - Wikipedia

    en.wikipedia.org/wiki/Color_of_water

    The same water in a smaller bucket looks only slightly cyan, [1] and observing the water at close range makes it appear colorless to the naked eye. The intrinsic color of liquid water may be demonstrated by looking at a white light source through a long pipe that is filled with purified water and closed at both ends with a transparent window.

  4. Eye color - Wikipedia

    en.wikipedia.org/wiki/Eye_color

    The irises of human eyes exhibit a wide spectrum of colours. Eye color is a polygenic phenotypic trait determined by two factors: the pigmentation of the eye's iris [1] [2] and the frequency-dependence of the scattering of light by the turbid medium in the stroma of the iris. [3]: 9

  5. Color - Wikipedia

    en.wikipedia.org/wiki/Color

    Color reproduction is the science of creating colors for the human eye that faithfully represent the desired color. It focuses on how to construct a spectrum of wavelengths that will best evoke a certain color in an observer. Most colors are not spectral colors, meaning they are mixtures of

  6. Underwater vision - Wikipedia

    en.wikipedia.org/wiki/Underwater_vision

    The vertebrate eye is usually either optimised for underwater vision or air vision, as is the case in the human eye. The visual acuity of the air-optimised eye is severely adversely affected by the difference in refractive index between air and water when immersed in direct contact.

  7. Tetrachromacy - Wikipedia

    en.wikipedia.org/wiki/Tetrachromacy

    The four pigments in a bird's cone cells (in this example, estrildid finches) extend the range of color vision into the ultraviolet. [1]Tetrachromacy (from Greek tetra, meaning "four" and chroma, meaning "color") is the condition of possessing four independent channels for conveying color information, or possessing four types of cone cell in the eye.

  8. Ludacris causes fans to worry after he drinks 'fresh glacial ...

    www.aol.com/entertainment/ludacris-causes-fans...

    Atlanta rapper and actor Ludacris drank glacier water while in Alaska for a show, prompting fans to worry about his health. Ludacris causes fans to worry after he drinks 'fresh glacial water' in ...

  9. 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.

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