A noncontact laser microsurgical apparatus and method for marking a cornea of a patient's or donor's eye in transplanting surgery or keratoplasty, and in incising or excising the corneal tissue in keratotomy, and for tissue welding and for thermokeratoplasty. The noncontact laser microsurgical apparatus...http://www.google.es/patents/US5281211?utm_source=gb-gplus-sharePatente US5281211 - Noncontact laser microsurgical apparatus