{"id":1835,"date":"2026-10-20T08:52:47","date_gmt":"2026-10-20T08:52:47","guid":{"rendered":"https:\/\/laseristanbulclinic.com\/eye-glossary\/limbus\/"},"modified":"2026-10-20T12:56:58","modified_gmt":"2026-10-20T12:56:58","slug":"limbus","status":"publish","type":"page","link":"https:\/\/laseristanbulclinic.com\/en\/eye-glossary\/limbus\/","title":{"rendered":"Limbus of the Eye: What It Is, What It Does and Conditions That Affect It"},"content":{"rendered":"\n
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  1. Home<\/a><\/li>
  2. Knowledge centre<\/a><\/li>
  3. Eye glossary A\u2013Z<\/a><\/li>
  4. Limbus of the Eye: What It Is, What It Does and Conditions That Affect It<\/span><\/li><\/ol><\/div>\t\t\t

    Limbus of the Eye: What It Is, What It Does and Conditions That Affect It<\/h1>\n\t\t\t\t\t\t\t\t<\/div>\n\t<\/div><\/div>\n<\/section>\n\n\n\n\n
    \n\t\t<\/svg>Definition<\/span>\n\t\t\t

    Limbus<\/strong> (noun; also called the corneal limbus or corneoscleral limbus)<\/em>: the limbus of the eye is the narrow ring where the clear cornea in front of the iris meets the white sclera and the conjunctiva. It is the home of the limbal stem cells that keep renewing the surface of the cornea, and it acts as a barrier that stops the conjunctiva and its blood vessels growing across the cornea. Damage to the limbus can therefore cloud the cornea and affect the success of corneal surgery, which is why cornea specialists such as Do\u00e7. Dr. Muhammet Derda \u00d6zer at Laser Istanbul Clinic check it carefully.<\/p>\n\t\t<\/div><\/div><\/div><\/div><\/section>\n\n\n\n\n

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    Limbus of the eye: key facts<\/h2><\/div>\n\t\t\t\t\t<\/div>\n\t\t\t
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    <\/svg>Where it is<\/span><\/dt>
    The circular border between the cornea (the clear front window) and the sclera (the white of the eye); the conjunctiva begins here and extends back to the fornices (the pockets under the eyelids)<\/dd><\/dl><\/div>\n\t\t\t\t
    <\/svg>What it looks like<\/span><\/dt>
    A thin ring around the edge of the coloured iris, often seen as a slightly darker or blurred band, depending on pigmentation<\/dd><\/dl><\/div>\n\t\t\t\t
    <\/svg>Where it is widest<\/span><\/dt>
    At the top (superior) and bottom (inferior) of the cornea<\/dd><\/dl><\/div>\n\t\t\t\t
    <\/svg>What lives there<\/span><\/dt>
    Limbal epithelial stem cells, held in a protected niche formed by radial ridges called the palisades of Vogt<\/dd><\/dl><\/div>\n\t\t\t\t
    <\/svg>Blood supply<\/span><\/dt>
    The cornea itself has no blood vessels; the limbus sits at the edge of the vascular tissue outside the cornea, which feeds the stem cells<\/dd><\/dl><\/div>\n\t\t\t\t
    <\/svg>Main jobs<\/span><\/dt>
    Renewing the corneal surface, blocking conjunctival tissue and vessels from entering the cornea, and nourishing the corneal edge<\/dd><\/dl><\/div>\n\t\t\t\t
    <\/svg>Common problems<\/span><\/dt>
    Limbal stem cell deficiency, chemical burns, pterygium, allergic limbal disease (vernal keratoconjunctivitis)<\/dd><\/dl><\/div>\n\t\t\t\t
    <\/svg>Specialist<\/span><\/dt>
    Cornea specialist (ophthalmologist); at Laser Istanbul Clinic, Do\u00e7. Dr. Muhammet Derda \u00d6zer<\/dd><\/dl><\/div>\n\t\t\t<\/div>\n\t\t\t

    Note on titles: “Do\u00e7.” is the Turkish title for an Associate Professor, the academic rank held by Do\u00e7. Dr. \u00d6zer.<\/p>\n\t<\/div><\/div><\/div><\/section>\n\n\n\n\n

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    \"Illustration<\/div><\/div>\n\t\t
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    Where is the limbus of the eye?<\/h2>\n\t\t\t\t\t\t

    The limbus is the transition zone between three tissues: the transparent cornea, the opaque white sclera and the thin, clear conjunctiva that covers the sclera. Looking at an eye in the mirror, it is the edge of the coloured part: the point where the dome of the cornea ends and the white of the eye begins.<\/p>\n\t\t\t\t\t\t

    Two details are useful to know:<\/p>\n