|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||128/3031 ; 128/395 ; 219/121LA ; 219/121LJ|
|발명자 / 주소|
|출원인 / 주소|
|인용정보||피인용 횟수 : 316 인용 특허 : 8|
The invention contemplates use of a scanning laser characterized by ultraviolet radiation to achieve controlled ablative photodecomposition of one or more selected regions of a cornea. Irradiated flux density and exposure time are so controlled as to achieve desired depth of the ablation, which is a local sculpturing step, and the scanning action is coordinated to achieve desired ultimate surface change in the cornea. The scanning may be so controlled as to change the front surface of the cornea from a greater to a lesser spherical curvature, or from a l...
The method of changing optical properties of an eye by operating solely upon the anterior surface of the cornea of the eye, which method comprises selective ultraviolet irradiation and attendant ablative photodecomposition of the anterior surface of the cornea in a volumetric removal of corneal tissue and with depth penetration into the stroma and to a predetermined cruvature profile.