To improve vision, many choose laser eye surgery, LASIK or another form of laser eye surgery. Patients who wear corrective eyeglasses often consider undergoing laser-assisted in-situ keratomileusis (LASIK), which is a refractive eye surgery. During this procedure the eye surgeon uses a laser to reshape the cornea. During this form of laser eye surgery, an eye surgeon uses a metal tool called a microkeratome to cut a flap on the surface of the cornea. The cornea is reshaped by eye surgeons, using a laser. Afterward the corneal flap will then be put back into place for healing.

LASIK procedures are virtually painless, and typically result in almost immediate vision improvements. Many people experience changes that result in 20/20 vision or better. The primary drawback of LASIK involves the chance of uneven or thin corneal flap sides that could cause an astigmatism or an uneven corneal curve that results in blurry vision or tearing, scarring, infection or chronically dry eyes. Sometimes, individuals who undergo LASIK procedures develop halos, glare, or double vision after the surgery. LASIK is not the ideal procedure for individuals with corneas that are very thin.

Instead of a microkeratome, IntraLase Lasik is a technique that involves using a laser to cut the corneal flap. As with standard LASIK, an excimer laser is then used to remove and reshape the cornea.

iLASIK procedure has several advantages. First, the laser typically creates more even corneal flaps with thicker vertical edges which reduce the likelihood of tearing, scarring or astigmatism. Next, corneal flaps created by iLASIK procedures fit better over the eye after surgery, reducing the risk of infection and chronic dry eyes. Finally, individuals who undergo iLASIK procedures are more likely to achieve 20/20 vision or better and less likely to require follow-up vision enhancement surgeries.

Custom LASIK surgery, can be described as the use of 3-D maps, by eye doctors, to actually guide the laser while reshaping the cornea, which enables the eye surgeon to more precisely determine their patients visual acuity.