Patient Education

Corneal Transplants: what is New? (Dr. Ashok Sharma)

*Corneal Transplant has been the standard of care for corneal opacification.

*Cornea being free from blood vessels, results of corneal transplants are good.

* Modern microsurgical techniques and availability of quality donor corneas have enabled corneal surgeons to perform successful corneal transplants even in children. * Patients with blood vessels in the cornea are prone to failure

*Recent advances in corneal transplant surgery aim to replace only the diseased layer also termed as component corneal transplants. The various components of the cornea, epithelial cells, epithelial stem cells, stroma and endothelium can be transplanted individually.

* Newer surgical procedures  viz. epithelial cell sheet transplants, deep anterior lamellar keratoplasty and endothelial keratoplasty are in practice.

*Surgical procedures such as cultured limbal stem cell transplant improves the ocular surface in limbal stem cell deficiency disorders.

*Patients with multiple graft failure and ocular surface failure not amenable to cultured limbal stem cell transplants (chemical injury, Stevens Johnson syndrome and ocular cicatricial pemphigoid) may be visually rehabilitated by performing keratoprosthesis.

* These patients need to be closely monitored for corneal melts, infection and intra ocular pressure rise.

*In the current scenario, judicious use of corneal surgeon’s armamentarium may eliminate corneal blindness. There is a caution to abuse of technology!

Dr Ashok Sharma

Director, Cornea Centre,SCO 833-834,  Sector 22 A Chandigarh

E mail: asharmapgius@yahoo.com; ashok.cornea@gmail.coM

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