Method and apparatus for creating ocular surgical and relaxing incisions
DC CAFCFirst Claim
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1. A cataract surgery scanning system for treating target tissue in one or more of a cornea, limbus or sclera of a patient'"'"'s eye, comprising:
- a treatment light source for generating a treatment light beam;
a scanner for deflecting the light beam to form first and second treatment patterns of the treatment light beam under the control of a controller; and
a delivery system comprising the controller operatively coupled to the treatment light source and the scanner, and programmed to;
(i) deliver the first treatment pattern to a first target tissue selected from the group consisting of the cornea, limbus and sclera of the patient'"'"'s eye to form a cataract incision therein that provides access to an eye chamber of the patient'"'"'s eye, the incision to be formed by delivering the first treatment pattern only partially extending through the target tissue, and (ii) deliver the second treatment pattern to a second target tissue to form a relaxation incision along or near limbus tissue, or along corneal tissue-of the patient'"'"'s eye.
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Abstract
A system and method of treating target tissue in a patient'"'"'s eye, which includes generating a light beam, deflecting the light beam using a scanner to form first and second treatment patterns, delivering the first treatment pattern to the target tissue to form an incision that provides access to an eye chamber of the patient'"'"'s eye, and delivering the second treatment pattern to the target tissue to form a relaxation incision along or near limbus tissue or along corneal tissue anterior to the limbus tissue of the patient'"'"'s eye to reduce astigmatism thereof.
152 Citations
17 Claims
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1. A cataract surgery scanning system for treating target tissue in one or more of a cornea, limbus or sclera of a patient'"'"'s eye, comprising:
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a treatment light source for generating a treatment light beam; a scanner for deflecting the light beam to form first and second treatment patterns of the treatment light beam under the control of a controller; and a delivery system comprising the controller operatively coupled to the treatment light source and the scanner, and programmed to;
(i) deliver the first treatment pattern to a first target tissue selected from the group consisting of the cornea, limbus and sclera of the patient'"'"'s eye to form a cataract incision therein that provides access to an eye chamber of the patient'"'"'s eye, the incision to be formed by delivering the first treatment pattern only partially extending through the target tissue, and (ii) deliver the second treatment pattern to a second target tissue to form a relaxation incision along or near limbus tissue, or along corneal tissue-of the patient'"'"'s eye. - View Dependent Claims (2, 3, 4, 5, 6, 7, 17)
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8. A cataract surgery scanning system for treating target tissue in one or more of a cornea, limbus or sclera of a patient'"'"'s eye, comprising:
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a treatment light source for generating a treatment light beam; a scanner for deflecting the treatment light beam to form first and second treatment patterns of the treatment light beam under the control of a controller; an imaging system configured for imaging tissue of the patient'"'"'s eye; and a delivery system comprising the controller operatively coupled to the treatment light source, the scanner, and the imaging system, and programmed to;
(i) operate the imaging system to acquire image data of the patient'"'"'s eye tissue;
(ii) deliver the first treatment pattern to a first target tissue selected from the group consisting of the cornea, limbus and sclera of the patient'"'"'s eye, based at least in part on the image data, so as to form a cataract incision therein sized to provide access to an eye chamber of the patient'"'"'s eye, the incision to be formed by delivering the first treatment pattern only partially extending through the first target tissue, and (iii) deliver the second treatment pattern to a second target tissue, based at least in part on the image data, so as to form a relaxation incision partially penetrating the target tissue, the relaxation incision to be formed along or near limbus tissue, or along corneal tissue of the patient'"'"'s eye. - View Dependent Claims (9, 10, 11)
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12. A cataract surgery scanning system for treating target tissue in one or more of a cornea, limbus or sclera of a patient'"'"'s eye, comprising:
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a treatment light source for generating a treatment light beam; a scanner for deflecting the light beam to form first and second treatment patterns of the treatment light beam under the control of a controller; a profilometer configured for measuring a surface profile of a surface of the cornea of the patient'"'"'s eye, wherein the controller controls the formation of the second treatment pattern by the scanner in response to the measured surface profile; a detector configured for measuring scattering properties from different locations on the patient'"'"'s eye;
wherein the controller controls the formation of at least one of the first and second treatment patterns by the scanner in response to the measured scattering properties; anda delivery system comprising the controller operatively coupled to the treatment light source, the scanner, the profilometer, and the detector, and programmed to;
(i) operate the profilometer to measure a surface profile of a surface of the cornea of the patient'"'"'s eye;
(ii) operate the detector to measure scattering properties from locations on the patient'"'"'s eye;
(iii) deliver the first treatment pattern to a first target tissue selected from the group consisting of the cornea, limbus and sclera of the patient'"'"'s eye to form a cataract incision therein that provides access to an eye chamber of the patient'"'"'s eye, the incision to be formed by delivering the first treatment pattern only partially extending through the first target tissue, and (iv) deliver the second treatment pattern to a second target tissue to form a relaxation incision partially penetrating the target tissue, the relaxation incision to be formed along or near limbus tissue, or along corneal tissue of the patient'"'"'s eye. - View Dependent Claims (13, 14, 15, 16)
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Specification