Corneal Transplant  (KERATOPLASTY)

  • Corneal transplantation / corneal Grafting/Keratoplasty is a surgery performed to replace diseased or affected part of the cornea.
    The cornea is the front surface of the eye. In health it is optically clear and allows a clear image to be formed on the retina.
    Conditions like infection, injury , dystrophy and degeneration can make this layer cloudy, resulting in Corneal blindness.
    The cornea is like a sandwich , made of many layers. The disease in the cornea can affect one or more layers.

    Replacing the corneal layers to the affected depth can ‘clear ‘  the opacity. Hence Corneal Transplantation may be Full thickness ( Penetrating Keratoplasty) or partial thickness (Lamellar Keratoplasty).

    If the superficial layers are transplanted , it is termed as an Anterior Lamellar keratoplasty , while if the innermost layer is affected (the endothelium , with a thin sliver of stroma) and replaced , it is called an Endothelial Keratoplasty.

    The advantages of lamellar grafts is the benefit of closed eye surgery, reducing the risks of bleeding , haemorrhage, infection and most of all rejection.

    Corneal Transplantation is the most successful organ transplant with a success rate of 85 to 90 percent .

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