CORNEA TRANSPLANT

Keratoconus is a degenerative corneal disease, caused by thinning of the cornea. So in case of progressive keratoconus, if preventive measurements were not taken on time, corneal transplant may be required in future. When the corneal thinning approaches to a stage, where no other vision correction method or treatment works, corneal transplant may be advised by your eye doctor.

Since thinning of the cornea causes further steepening of the cornea. This makes fitting of contact lenses very difficult and wearing them becomes intolerable due to increased corneal cone.
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In corneal transplant a diseased or injured portion of cornea is removed and replaced by a new healthy part of cornea. This new replacement has to be taken from a cornea donor. Corneal transplanting is also known as corneal grafting. Vision quality after the surgery gradually improves as the eye accepts the new cornea. There are two main types of techniques adopted for cornea transplant in case of keratoconus -

  • Penetrating keratoplasty (PK)
  • Deep Anterior Lamellar Keratoplasty (DALK)


Risks of corneal transplant

As certain risks are involved with all kinds of surgeries, the corneal transplant too is not any exception. So here are some risks associated with the cornea transplant-

  •   Corneal graft rejection is possible in some cases.
  •   Eye infection is another major risks associated with cornea transplant.

The most severe risk is the corneal graft rejection, in which the eye does not accept the cornea and treats it as a foreign body so tries to destroy it. 
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Therefore it is very much essential to identify the symptoms of corneal transplant rejection.
These symptoms are mentioned below-

  •    Redness
  •   Extreme sensitivity to light
  •   Decreased vision
  •   Pain
Even after cornea transplant, the patient most probably would have to use glasses or contact lenses for functional and satisfactory vision. Hence it is clear, that it is better to diagnose the early symptoms of keratoconus and take preventive treatment like C3R/CXL to halt its progression.


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