Femtosecond laser is good, which device is better

Femtosecond laser is the best equipment is the German Zeiss femtosecond laser (VisuMax), is currently the only device that can do full femtosecond laser myopia surgery, flapless full-femtosecond (smile) tiny incision corneal stromal lens removal , flapfull-femtosecond (laugh) corneal stromal lens removal,