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准分子激光角膜切削术和准分子激光原位角膜磨镶术可以称之为现代眼屈光外科手术的一次技术革命，因而对准分子激光光子的要求是，光子能量要高，光子通量恰当，光子输出稳定可靠，光束质量高。临床上使用的准分子激光器工作模式有：单光束光圈调整、单光束规则扫描及单光束非
Excimer laser keratomileusis and excimer laser in situ keratomileusis can be called a modern technological revolution in refractive surgery of the eye, and therefore the requirements of the excimer laser photon is that the photon energy is high and the photon flux is appropriate , Photon output is stable and reliable, high beam quality. Clinically used excimer laser mode of operation are: single-beam aperture adjustment, single-beam regular scanning and single-beam non-