How long has LASIK been performed?
LASIK has been performed internationally for about 18 years. It is important to know that the major components of the procedure have a long history. Ophthalmologists have been re-shaping the cornea for over 50 years and using the Excimer Laser since the 1980’s.
How does Lasik work?
The cornea, the transparent front window of the eye, contributes two thirds of the total focusing power of the eye. Altering its shape changes the focusing power of the eye. LASIK flattens the cornea to correct short-sightedness or steepens the cornea for far sightedness. This re-shaping process can also be used to correct astigmatism.
The surgeon creates a very thin corneal flap with an instrument called a microkeratome. The laser is used to re-shape the bed of the cornea under the flap. The flap is then re-placed which sticks like cling film without the need for stitches. Vision recovers rapidly with minimal discomfort.