The Amrit Hospial provides treatment to the diseases of cornea and epithelium such as dystrophies, infections, cornea swelling, dry eyes and injuries. A major service of this center is that of corneal.
More about the Surgery:
The cornea is the transparent tissue that forms the front of the eye. A Clear cornea is required to focus light onto the retina, which is the innermost layer of the eye. Any damage to the cornea results in blurring of vision, watering and other related problems.
The major part of Corneal Surgery is corneal transplantation. A corneal transplant is performed when vision cannot be corrected satisfactorily using other treatment options or if painful swelling cannot be relieved by medications or special contact lenses.
Conditions requiring corneal transplant:
- Corneal failure after other eye surgery;
- Hereditary corneal failure;
- Corneal dystrophies;
- Scarring after infections;
- Rejection after the first corneal transplant. Of all the transplant surgery done today (hearts, lungs, kidneys, etc.) corneal transplants has the most successful rate.
Preparing for the Surgery:
Surgery is usually done under Local or general anesthesia. The decision as to which type is used is decided by your surgeon preoperatively and is based on your age, general health, length of surgery and your anxiety level. You may be asked to skip breakfast, depending on the time of your surgery.
About the Surgery:
The entire surgery is done under an Operating microscope. A circular cutter-like instrument, called a trephine, is used to remove the center of the diseased cornea. A “button” is cut from the donor cornea. This donor tissue is then stitched in place with extremely fine nylon sutures. At the conclusion of the procedure, a patch and shield are applied to protect the eye.
Post-operative Instructions &Follow-up:
- The eye drops are very important and you should know exactly when you should use them.
- Wear eyeglasses or an eye shield if advised by your doctor
- Since the new cornea is delicately sutured in place, one should avoid direct injury to the eye. Contact sports and sports like cricket, shuttle and tennis are discouraged after corneal transplant. Otherwise, normal activity can be resumed within a few days.
- To prevent rejection of the new cornea, steroid eye drops are used for several months after surgery. In some cases, low dosage steroid drops are continued for a longer time. Unlike oral steroids, steroid eye drops cause no side effects.
- It is important to report immediately if you notice any unusual symptoms, including Redness, Sensitivity to lights, Vision loss, or Pain including Flashes of light, floaters, and loss of peripheral vision.
Newer Corneal transplantation Methods:
DSEK (Descemet Stripping Endothelial Keratoplasty) refers to a partial thickness corneal transplantation in which a small amount of the posterior layer of the cornea and the endothelium, the innermost part of the cornea is transplanted to a decompensated cornea. Mostly performed for corneal diseases pseudophakic/aphakic corneal decompensation following cataract surgery), Fuch???s endothelial dystrophy, and other disorders in which the endothelium is dysfunctional. The main advantage of this procedure is the lack of sutures and the visual recovery is more rapid and astigmatism is lesser.
DALK (Deep Anterior Lamellar Keratoplasty) refers to transplantation of only the top and middle layers of the cornea, leaving the innermost layer (endothelium) of the patient intact. Mostly performed for keratoconus, other corneal diseases (scars) involving the top and middle layers of the cornea. The main advantages of this procedure is minimal chances of corneal endothelial rejection.