Patent ID: 9592156
Date: 2017-03-14
CPC Classifications: A61F

Claim:
1. A method of ablating eye tissue comprising the steps of: selecting a laser ophthalmological surgery apparatus having a UV laser for generating a laser beam and having a hand piece having a scanner and an f-theta telecentric scan focusing lens therein to convert the laser beam from a divergent to a parallel scanning laser beam, said hand piece having an eye stabilization and distance control unit extending therefrom having an open center area and an eye contact edge thereon, said hand piece having an aligning light thereon for aligning the eye stabilization and distance control unit with a patient's eye, said apparatus having a rotatable mirror set module coupling said UV laser to said hand piece; generating a UV laser beam having a wavelength from 193 nm to 213 nm with said UV laser; generating an overlapping random scanning pattern laser beam control signal; applying the generated UV laser beam through a rotating mirror set module into said selected hand piece; directing the generated UV laser beam onto hand piece scanner; applying the generated overlapping random scanning pattern laser beam control signal to said scanner to generate a two-dimensional overlapping random scanning diverging laser beam pattern; applying the two-dimensional overlapping random scanning diverging laser beam through said f-theta telecentric scanning focusing lens mounted in said hand piece to convert the laser beam from a divergent scanning to parallel scanning laser beam; manipulating said hand piece on said rotating mirror set module to align said eye stabilization and distance control unit on a patient's eye and to bring said eye stabilization and distance control unit into eye contact with a patient's eye; directing said parallel scanning laser beam through the open center of said eye stabilization and distance control unit; and impinging said two-dimensional parallel overlapping random scanning laser beam from said hand piece onto the surface of the patient's eye to ablate tissue from the surface of the eye; whereby surgical ablation is performed on a patient's eye with a two-dimensional overlapping random scanning parallel laser beam through a hand manipulated hand piece in contact with the patient's eye.