LASIK Eye Surgery
What is LASIK? Laser-Assisted in Situ Keratomileusis (LASIK) is a type of laser eye surgery for correcting myopia (nearsightedness), hyperopia (farsightedness) and astigmatism. LASIK uses cool rays of light to reshape the inner tissue of the cornea to the proper curvature. The procedure is quick, painless and heals naturally. Are you a good LASIK candidate? At Bochner Eye Institute in Toronto we see numerous LASIK eye patients and are constantly asked what makes a good LASIK eye surgery patient. The following are some qualities we look for in a good LASIK candidate: Eyes must be healthy Cornea needs to have adequate thickness At least 18 years of age Have stable vision for at least a year Overall good health Realistic expectations LASIK Toronto, Scarborough, Unionville & Oakville The IntraLase iFS Femtosecond Laser Preparing for your LASIK eye surgery Days Before To prepare for LASIK surgery, patients are asked to stop wearing their contact lenses for several days beforehand. You’ll also have several eye tests that allow your surgeon to precisely plan your customized treatment. Immediately Before Immediately before the surgery, you’ll be given anesthetic eye drops to numb your eye, and an instrument called an eyelid speculum will be put in place to hold your eyelid open. During Using an IntraLase laser, your surgeon will safely and precisely create a protective flap that is folded back. Next, the Excimer laser reshapes the inner tissue of the cornea with up to .25 microns of accuracy (about half the thickness of a human hair). The corneal flap is then re-positioned into place and the eye begins to heal. After Afterwards, if you’re like most patients you’ll have little or no discomfort. You’ll have several follow-up appointments. Compare Laser Vision Correction Procedures The Bochner Eye Institute is the Preferred Laser And Eye Centre For The Toronto Maple Leafs™. Learn More The Bochner Eye Institute is the Official Laser And Eye Centre OF The Toronto Blue Jays™. LASIK FAQs How do I know if I’m a good candidate for laser vision correction? You’ll need to undergo a detailed eye examination. We will determine your prescription, evaluate your corneal contour using computerized pentacam corneal analysis, measure the thinnest point of your cornea, and evaluate the interior health of your eyes. Can all prescriptions be treated by laser vision correction? All but the most extreme prescriptions are usually eligible for laser surgery. Patients that are nearsighted can usually have laser vision correction if their prescription is less than 10 diopters. Farsighted patients can usually have laser surgery if their prescription is less than 5 diopters. Can astigmatism be corrected with laser vision correction? Yes, in addition to nearsightedness and farsightedness, astigmatism can be treated. If you have astigmatism, it means that your eye has a curvature like a football rather than a basketball. The laser will typically flatten or steepen one meridian to improve the shape of the cornea and enhance vision. Is there an age limit for laser vision correction? It is recommended that patients be at least 21 years of age for laser surgery. This is the age at which the prescription is relatively stable. If patients have laser surgery and the prescription changes in the future, additional surgery can be performed. There is no upper age limit for laser eye surgery. As long as the eyes are healthy, patients can have laser vision correction. In fact, patients who have had cataract surgery can have laser surgery to refine their vision without glasses. Are there different types of laser vision correction procedures? Yes, there are two main types of laser vision procedures: LASIK and PRK. With LASIK, a thin flap is constructed, the flap is retracted, tissue is removed with an excimer laser, and then the flap is re-positioned. This results in a change in the contour of the cornea resulting in vision correction. The other technique is called PRK. This procedure initially involves removal of the central corneal epithelium and is followed by removal of corneal tissue with an excimer laser. A soft contact lens is worn for 5 days while the underlying epithelium regenerates. Is there a difference in the final outcome between LASIK and PRK? No, the final visual result is the same with LASIK or PRK, however the healing time is longer with PRK. With PRK the epithelium regenerates, typically by 5 days, but it takes a while for the epithelium to smooth out in order to see well. With LASIK 99% of patients can drive within 24 hours after having the procedure. With PRK it is advised not to drive until the contact lenses are removed which is usually in about 5 days. It may take 2 to 4 months after PRK for your best vision to be obtained.