How does LASIK differ from PRK and LASEK?

The main difference is the use of a microkeratome to make a small cut across the outer layer of the cornea. This creates a small flap which can be moved to one side, and enables the surgeon to reshape the cornea.

LASEK and PRK are very similar except LASEK also allows the epithelium (outer layer of the cornea) to be used as a flap. This flap can then be raised to allow access for the laser. Plus, a small, soft contact lens is placed on the surface of the eye to assist with healing.

The main difference between LASIK and PRK/LASEK is in the technique used to remove the outer layer of the cornea (epithelium) so that the middle layer of the cornea (stroma) is exposed.

One advantage of LASIK is that there is very little pain or discomfort and a quicker recovery time than the other two procedures.

LASIK can treat most types of refractive error, ranging from mild through to severe. But some extremely high levels may not be suitable.

LASIK Laser Eye Surgery Guide:

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