Automated Lamellar Keratoplasty


Also referred to as ALK. This is a surgical procedure used to replace the front of a damaged cornea. It has largely been replaced with more modern vision correction procedures such as laser eye surgery. It corrects vision of people who have severe nearsightedness and mild farsightedness.

Initially your eye surgeon will discuss the procedure with you and what you are likely to achieve. A medical history will be taken and your eyes will be tested to assess suitability. Various tests including measuring corneal thickness, refraction and pupil dilation will be completed. If you wear contact lenses, you may be asked to stop wearing them before the procedure.

The procedure is performed under local anaesthetic and is very quick, usually around one hour long. A flap is cut on the cornea and is then folded back. A further cut is made on the sub layer of tissue behind the initial flap. This cut is determined by the eyesight problem. The flap is then replaced and reattaches itself naturally over time. You will be given eye drops to control inflammation and prevent infection and you may wish to take painkillers to remove discomfort. The healing process is relatively quick with minimal discomfort and fast vision recovery. Vision usually stabilises within one week. However, results are not always predictable and irregular astigmatism may result. Like with other eye procedures, risks include glare, difficulty in wearing contact lenses and corneal scarring. There is also a risk of infection.


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