What are some of the possible complications of Lasik eye surgery?
Undercorrection this occurs when the expected vision correction falls short of the desired outcome. This occurs more commonly with patients who have a high degree of nearsightedness (only objects close up are clear), farsightedness (only objects far away are clear) or astigmatism (images both far and near are distorted). Why? There is more laser corneal sculpting that needs to occur with patients having higher degrees of vision imperfection. When choosing your Lasik eye surgeon, its important to ask them what percentage of their patients need retreatment for undercorrection. This should be something that they are willing to freely discuss with you. If not, walk away! This is not to be confused with a planned slight undercorrection for nearsighted patients over forty years old which aids their reading vision. But this is something that you and your Lasik eye surgeon would have discussed before your surgery.
Overcorrection this complication occurs less frequently than undercorrection and results when the amount of correction (corneal laser sculpting) exceeds what is planned. Slight overcorrection...