It is the latest advance technology certified by USFDA (United States Food and Drug Administration) that is the most safe and accurate. It has an information network between Excimer Laser, which adjust the curve of the cornea, and the advance computer that consolidates the result and transfer the information through LAN-Network and disk. This process is universally accepted by ophthalmologist that it can increase better night vision and save the retina more than the old technology. It is the better treatment in a more serious vision problem.