What Is LASIK Eye Surgery?
LASIK, which stands for laser in-situ keratomileusis, is a popular surgery that can correct vision in people who are nearsighted or farsighted, or who have astigmatism.
It’s one of many vision correction surgeries that work by reshaping your cornea, the clear front part of your eye so that light focuses on the retina in the back of your eye.
Why Is LASIK Done?
When light doesn’t focus on your retina the way it should, your vision is blurry. Doctors call this a refractive error. The basic types include:
- Nearsightedness (myopia). You see things clearly when they’re close to you, but things farther away are blurry.
- Farsightedness (hyperopia). You see faraway things more clearly, but closer things are blurry.
- Astigmatism. This can make everything blurry because of how your eye is shaped.
How Should You Prepare for LASIK Eye Surgery?
Before LASIK, you’ll meet with a coordinator or eye surgeon who will talk about what to expect during and after the procedure. They’ll ask about your medical history and do a full eye exam. This may include tests to measure the thickness of your cornea, refraction, and eye pressure. They may map your corneas and dilate your pupils. The surgeon will answer any questions you may have. Then, you can schedule an appointment for the surgery.
If you use rigid gas-permeable contact lenses, don’t wear them for at least 3 weeks before your evaluation. Don’t wear other types of contact lenses for at least 3 days prior to the evaluation. Be sure to bring your eyeglasses so the surgeon can review your prescription.
