System and method, the epithelial layer of the cornea eye for treatment region, which has, to be arranged in hypothallus. Example technique includes being administered on epithelium and the generic sequence ablation laser pulse surface of matrix ablative laser pulse to seem. A kind of laser for the treatment of generates laser beam ablation ocular tissue, on the region of motion scan component scans laser beam. Processor is coupled to laser and movable scan component, and processor is configured and arranged region of the laser beam to epithelium and hypothallus of pulse.