How does laser eye surgery work?

Laser eye surgery, like LASIK, reshapes the cornea to correct vision problems such as nearsightedness, farsightedness, or astigmatism. During the procedure, a laser precisely removes a small amount of corneal tissue to change its shape, allowing light to focus correctly on the retina. The procedure is quick, usually painless, and results in improved vision without the need for glasses or contact lenses.