Safer corrective eye surgery

SURGICAL procedures that correct vision problems are often referred to as vision correction, refractive or laser eye surgery. Owing to extensive research, the invaluable refinements and advancement in laser technology and diagnostic tools, it has led to safer treatment options for refractive disorders. Presently, laser-assisted in situ keratomileusis (Lasik) is still the most performed elective procedure. However in recent years, a new procedure called ReLEx Smile is gaining popularity.

Unlike Lasik, this procedure doesn’t create a flap and involves the use of only one laser (the femtosecond laser). Also, instead of vapourising the cornea tissue to correct the underlying short-sightedness and astigmatism, ReLex Smile carves out a small piece of corneal tissue called a lenticule in the cornea. The lenticule is then removed through a small keyhole incision (about 2.5 to 4mm only).

This single-step, all-in-one-laser operation only takes about 30 seconds to perform for one eye while the entire procedure takes about 15 minutes for both eyes. The laser is fast and uses very low energy. In addition, the procedure is odourless and silent, ensuring less discomfort for patients. Patients also feel more comfortable because suction on the eye during treatment is gentler. There is also no frightening “blackout” or bleeding (no red eye) during the procedure or swelling of the eye after treatment.

Also, due to the smaller wound by the minimally invasive surgery, ReLEx Smile results in a much stronger eye and less immediate postoperative discomfort and tearing. The small incision also means that fewer corneal nerves are severed during the procedure, which also means less dry eye. With no flap created, flap displacement or dislodgement is not an issue. Most patients

The lenticule is removed through the small incision. The disruption to the biomechanics of the cornea is minimal and no flap is cut.