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Keratoconus is a degenerative corneal disease, caused by thinning of the cornea.
So in case of progressive keratoconus, if preventive measures are 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.
In corneal transplant a diseased or injured portion of the 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
-
No.1- Penetrating keratoplasty (PK) No.2- Deep Anterior Lamellar Keratoplasty
also known as 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 corneal transplant-
1-Corneal graft rejection, which is possible in some cases
2-Eye infection 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 it tries to destroy it.
Therefore it is very much essential to identify the symptoms of corneal transplant rejection.
These symptoms are-
• Redness • Extreme sensitivity to light
• Decreased vision • Eye 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 cross-linking, to halt its progression.
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