For people who are nearsighted, certain refractive surgery techniques will reduce the curvature of a cornea that is too steep so that the eye's focusing power is lessened. Images that are focused in front of the retina, due to a longer eye or steep corneal curve, are pushed closer to or directly onto the retina following surgery.
Refractive surgery might be a good option if you:
Want to decrease your dependence on glasses or contact lenses
Are free of eye disease
Accept the inherent risks and potential side effects of the procedure
Understand that you could still need glasses or contacts after the procedure to achieve your best vision
Have an appropriate refractive error