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  2. Tache noir de la sclerotique - Wikipedia

    en.wikipedia.org/wiki/Tache_noir_de_la_sclerotique

    Tache noire de la sclerotique (French for Black spot of the sclera) is one of the ocular signs of death in which a reddish-brown discoloration is transversely arranged across the sclera. It occurs when the eyes are not completely closed so that the sclera is exposed to air. [ 1 ]

  3. Cooperative eye hypothesis - Wikipedia

    en.wikipedia.org/wiki/Cooperative_eye_hypothesis

    Unlike other primates, all human beings have eyes with a distinct colour contrast between the white sclera, the coloured iris, and the black pupil. This is due to a lack of pigment in the sclera. Other primates mostly have pigmented sclerae that are brown or dark in colour. There is also a higher contrast between human skin, sclera, and irises.

  4. Sclera - Wikipedia

    en.wikipedia.org/wiki/Sclera

    The sclera's blood vessels are mainly on the surface. Along with the vessels of the conjunctiva (which is a thin layer covering the sclera), those in the episclera render the inflamed eye bright red. [6] In many vertebrates, the sclera is reinforced with plates of cartilage or bone, together forming a circular structure called the sclerotic ring.

  5. Scleral tattooing - Wikipedia

    en.wikipedia.org/wiki/Scleral_tattooing

    Scleral tattooing. Scleral tattooing is the practice of tattooing the sclera, or white part, of the human eye.Rather than being injected into the tissue, the dye is injected between two layers of the eye, then gradually spreads.

  6. Eye color - Wikipedia

    en.wikipedia.org/wiki/Eye_color

    Eye color outside of the iris may also be symptomatic of disease. Yellowing of the sclera (the "whites of the eyes") is associated with jaundice, [82] and may be symptomatic of liver diseases such as cirrhosis or hepatitis. [83] A blue coloration of the sclera may also be symptomatic of disease. [82]

  7. Human eye - Wikipedia

    en.wikipedia.org/wiki/Human_eye

    The posterior chamber constitutes the remaining five-sixths; its diameter is typically about 24 mm (0.94 in). An area termed the limbus connects the cornea and sclera. The iris is the pigmented circular structure concentrically surrounding the centre of the eye, the pupil, which appears to be black.

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  9. Limbal ring - Wikipedia

    en.wikipedia.org/wiki/Limbal_ring

    A limbal ring is a dark ring around the iris of the eye, where the sclera meets the cornea. [1] It is a dark-colored manifestation of the corneal limbus resulting from optical properties of the region. [2] The appearance and visibility of the limbal ring can be negatively affected by a variety of medical conditions concerning the peripheral ...

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