A) It may be possible to have laser vision correction surgery after collagen crosslinking treatments for keratoconus; however, the results of such treatments have not been thoroughly studied. In the U.S., collagen crosslinking is still under investigation. Keratoconus represents a weakened, bulging cornea, the outermost eye structure. Collagen crosslinking attempts to strengthen this weakened part of the eye. If the treatment is successful the cornea returns to normal or near normal strength. If the treatment is unsuccessful, the continuing weakness may prevent the safe performance of keratorefractive techniques.