Possible Side Effects

Even though the refractive error may be corrected and the visual acuity may be good after LASIK, a moderate percentage of patients experience one or more of the following side effects:

As with any refractive procedure, it is common for patients to notice halos, ghost images, shadows, and slight distortions for the first few months after surgery. In some rare circumstances, these optical aberrations may interfere with normal visual activities.

Night myopia: Because only the central portion of the cornea is reshaped, eyes may become more nearsighted when the pupil dilates and allows light to enter through the peripheral cornea that has not been reshaped. Even if excellent vision is acheived during the daytime without glasses, a thin pair of glasses may be needed for optimum vision at night.

Dry Eye: During the healing process your eye may feel dry, and you may need to use non-preserved artificial tear replacement for comfort.

Discomfort: Most of the discomfort following LASIK occurs within the first 24 hours and can easily be controlled with a mild, over-the-counter pain reliever. The eyes may be slightly more sensitive to sunlight following surgery. It is important to discuss in detail the risks and benefits of the surgery with your surgeon.