While LASIK outcomes overwhelmingly are favorable, remember that — as with any surgery — risks of complications still exist. Fewer than 1 percent of patients still experience serious and ongoing vision problems following LASIK, because no surgical procedure is ever risk-free. Even people who have excellent uncorrected visual acuity after LASIK based on eye chart testing still can have bothersome side effects. For example, it is rare but possible that you may see 20/20 or better after LASIK but still have symptoms such as double visions, unresolved dry eyes or difficulty seeing at night because of glare or halos around lights.
When you sign the LASIK consent form provided by your eye surgeon prior to surgery, you should do so with a full understanding that, even in the best of circumstances, a slight chance exists that something unintended could occur.
Thankfully, most cases of undesired outcomes after LASIK can be corrected with additional surgery (called an enhancement) or with medical treatment, such as in the case of dry eyes.
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