What is the worst possible complication from the surgery?
Amongst the worst possible complications of LASIK is a serious infection which could lead to a scarring of the cornea or possibly even loss of the eye. Infections only very rarely occur because the laser is performed under sterile surgical conditions immediately followed by the application of prophylactic antibiotics. When the rare infection does occur, it can usually be controlled with topical antibiotics resulting in little or no ultimate loss of vision. Even if the cornea should happen to become seriously scarred because of an infection, corneal transplants are usually possible to restore clear vision again.