LASIK
How it works: During LASIK, the eye surgeon makes a protective flap of corneal tissue, then uses what's called an excimer laser to reshape the cornea. When the desired correction is achieved, the flap is carefully replaced. For a more customized procedure, some doctors are now using a technology called wavefront LASIK. This is a special machine that takes a detailed picture of the individual characteristics of each eye. That picture then acts as the roadmap for the laser, guiding it precisely for that patient's eyes rather than a general prescription. Costs: Costs of the procedure are dependent on the degree of correction needed, the kind of technology used (wavefront versus conventional) and the type of follow-up you will receive. Averages range from $1,700 to $2,500 per eye.

Photorefractive Keratectomy (PRK) and LASEK
How it works: PRK and LASEK are very similar to LASIK. Instead of creating that corneal flap, however, the surgeon pushes aside the thin outermost layer of the cornea, call the epithelium. In the LASEK procedure, the epithelium is not replaced, With both procedures, surgeons place a "bandage" contact lens on the eye for a few days to help in the healing process. PRK and LASEK are usually reserved for people who cannot undergo LASIK, for example, the cornea may be too thin to make the protective flap for LASIK. Cost: Generally the same as LASIK.

Conductive Keratoplasty (CK)
How it works: Recently approved by the FDA, CK uses radio frequency energy - rather than a laser-to correct farsightedness and presbyopia. During the procedure, the surgeon uses a radiofrequency probe to shrink the tissue on the outer portion of the cornea. In doing so, the cornea steepens, creating better near vision. Best for people who have never worn glasses, are over the age of 40 and need glasses to read. This procedure is not permanent and may need to be repeated. Cost: Ranges from $1,600 to $1,800 per eye.

Corneal Refractive Therapy (CRT)
How it works: CRT is a specially designed contact lens used to correct very low levels of nearsightedness and astigmatism. The contact lenses are worn overnight as you sleep. They flatten the central portion of the cornea temporarily, so when you wake up in the morning, you have relatively stable vision that can last most of the day. CRT is an option for people who do not want to be wearing their glasses or contacts all the time, yet don't want to have surgery. Cost: Less than other corrective surgeries, usually around $1,400 for the fitting and lenses (including an extra pair).

Intraocular Lens (IOL)
How it works: IOL implants are artificial lenses that are placed inside the eye. The two main categories are phakic IOL implants, which are placed in the eye without removing the natural lens, and natural lens replacement, in which the natural lens is removed and replaced by an artificial one. Costs: Ranges from $3,000 to $4,000 per eye.

Like any surgery, each of the procedures may have its own unique set of potential complications. It is important to talk with your ophthalmologist, an eye doctor, about the benefits and potential complications that may occur with your particular procedure.