为了把放射状角膜前切开术应用于临床,我们研制出了微型角膜切开刀,经几年来临床应用具有下列特点:①本刀具体积小,便于显微镜下使用。②能精确的调节切开角膜组织的深度,并能在术中控制预定的切开深度。只要预定的切开深度不超过角膜的厚度,就可避免切透角膜。③利用刮胡刀片作刃器,可随时更换,能保持刃器的锋利度。术后遗留疤痕较轻,裸眼难以分辩出来。④本刀具可高压蒸气消毒, In order to radial corneal anterior incision applied to clinical, we developed a micro-corneal incision knife, after several years of clinical application has the following characteristics: ① The tool is small, easy to use under the microscope. ② can accurately adjust the depth of incision corneal tissue, and can control the scheduled incision depth. As long as the planned depth of incision does not exceed the thickness of the cornea, the cornea can be cut off. The use of razor blades for blade, can be replaced at any time, to maintain the sharpness of the blade. Postoperative scar scarring, naked eye difficult to distinguish. ④ The tool can be high-pressure steam sterilization,