What Is LASIK Eye Surgery?

LASIK eye surgery is a type of surgery that corrects certain vision errors. Within the eye, the cornea helps focus light until an image is created on the retina. However, if the cornea or lens of the eye is irregularly shaped, the light will be focused directly in front of or behind the retina, leading to nearsightedness and farsightedness. The imperfections in the eye are referred to as refractive errors. Most patients with refractive errors use contact lenses or glasses. However, LASIK surgery can correct the errors at the source and eliminate the need for glasses and surgery. During LASIK surgery, a laser removes corneal tissue to reshape the cornea and allow it to focus correctly. There are other refractive surgeries as well, but LASIK is the most common one.