Corneal laser surgery may be a sight for sore eyes for people suffering from nearsightedness or those just tired of wearing glasses, but experts warn that people considering the increasingly popular operation need to be well-informed about the procedure and its possible results before going under the laser.

Advertising promising "You will no longer need to wear glasses or contact lenses," "You will have better eyesight in just 30 seconds," "The procedure is definitely reliable" is guaranteed to catch the eye of people with severe myopia and who see the laser surgery as the only viable option, or those whose eyesight may not be very bad but who no longer want to wear glasses or bother with contact lenses.

The procedure may seem even more simple because of the celebrities who have undergone it, including the U.S. golf giant Tiger Woods, whose myopia was cured by corneal refractive laser surgery.