An argon-fluoride excimer laser or other laser source capable of generating far-ultraviolet radiation at 193 nm is pulsed with energy densities of greater than 20 mj per cm.sup.2 at a repetition rate up to 25 pulses per second to direct its radiation through a mask and onto corneal tissue, or ...http://www.google.es/patents/US5735843?utm_source=gb-gplus-sharePatente US5735843 - Laser surgery apparatus and method
