Many people have poor vision and need glasses or contact lenses to see clearly. In refractive laser surgery, lasers are used to correct the glasses prescription in order to give good vision without glasses or contact lenses.
In laser eye surgery, your specific glasses prescription is lasered into your cornea. After surgery, many people who were previously dependent on glasses or contact lenses can see without any need for glasses.
See “About the Eye” for more information about eye anatomy.