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The corneal limbus (Latin: corneal border) is the border between the cornea and the sclera (the white of the eye). It contains limbal stem cells in its palisades of Vogt . It may be affected by cancer or aniridia (a developmental problem), among other issues.
Corneal limbus and 11. Sclera; 12. Conjunctiva, 13. Uvea with 14. Iris, 15. Ciliary body. The anterior segment or anterior cavity [1] is the front third of the eye that includes the structures in front of the vitreous humour: the cornea, iris, ciliary body, and lens. [2] [3] Within the anterior segment are two fluid-filled spaces:
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 ...
The cornea is the transparent front part of the eye that covers the iris, pupil, and anterior chamber. Along with the anterior chamber and lens, the cornea refracts light, accounting for approximately two-thirds of the eye's total optical power. [1] [2] In humans, the refractive power of the cornea is approximately 43 dioptres. [3]
Limbus (Lat. "edge, boundary") may refer to: Corneal limbus, the border of the cornea and the sclera (the white of the eye) Limbus of fossa ovalis, in the heart; Limbus 3 and Limbus 4, two line-ups of a German avant-garde musical group; Limbus, a type of garment trim added to the stola in Ancient Rome; Limbus Company, a 2023 video game
The corneal limbus is the part of the eye where the cornea (front/center) meets the sclera (white part of the eye). Thought to be caused by increased calcium concentration in the blood, this sign however persists after calcium phosphate concentration returns to normal. [1] Compare the limbus sign (calcification) with arcus senilis (lipid). [2]
Limbus sign is caused by dystrophic calcification at the corneal limbus, and can be confused with AS in geriatric populations. [5] Anterior embryotoxon is a congenital widening of the corneal limbus. [1] Posterior embryotoxon is a congenital thickening and anterior displacement of schwalbe's line. [1]
Tenon's capsule (/ t ə ˈ n oʊ n /), also known as the Tenon capsule, fascial sheath of the eyeball (Latin: vagina bulbi) or the fascia bulbi, is a thin membrane which envelops the eyeball from the optic nerve to the corneal limbus, separating it from the orbital fat and forming a socket in which it moves.