During laser eye surgery, or LASIK, a corneal flap is created with a keratome, the flap is laid back, and an excimer laser is used to vaporize corneal tissue and shape the lens to adjust for nearsightedness, astigmatism or farsightedness. Correct refractive vision problems using laser eye surgery with information from an ophthalmologist in this free video on eye care and vision problems.
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My name is Dr. Alan Watson. I'm an ophthalmologist in St. Joseph, Missouri. And we're here today to talk about eye problems. There are several types of lasers that are used on the eye, but the one that people are most concerned about is with the excimer laser that is used for refractive eye surgery. In that surgery, nearsightedness, farsightedness, and astigmatism can be corrected and allow people to see better without their glasses. Typically what happens in laser eye surgery is a flap is created in the cornea. That's with Lasik. It's laser-assisted keratomileusis in situ. And what that does is the flap is created with the keratome. The cornea flap is laid back. The stroma, or the inside of the cornea, is treated with the laser. That actually vaporizes the corneal tissue and shapes a lens into the cornea to adjust for the nearsightedness or the astigmatism or the farsightedness, whichever is measured pre-operatively to need to be corrected by the laser. Then the flap is laid back unto the cornea. And the cornea needs to knit back up around the edges of the flap. And that allows the patient to not have a scratchy eye and enjoy normal vision again. This has been Dr. Alan Watson, ophthalmologist in St. Joseph, Missouri, discussing different eye problems and the treatment of different eye problems with you.