What can laser eye surgery correct?

Laser eye surgery could not only cure myopia, hyperopia and astigmatism, but also could be used in keratoconus therapy and corneal transplantation surgeries (such as optical corneal layers transplantation). Especially the gradually use of Femtosecond Laser technology in refractive surgery. Femtosecond Laser could make corneal flap more convenient and precise than traditional keratome(such as Moria 2). And less complications.