Patterned laser treatment
AssigneeThe Board of Trustees of the Leland Stanford Junior University
InventorsMark S. Blumenkranz, Daniel V. Palanker, Dimitri Yellachich
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Abstract
Patterned laser treatment of the retina is provided. A visible alignment pattern having at least two separated spots is projected onto the retina. By triggering a laser subsystem, doses of laser energy are automatically provided to at least two treatment locations coincident with the alignment spots. All of the doses of laser energy may be delivered in less than about 1 second, which is a typical eye fixation time. A scanner can be used to sequentially move an alignment beam from spot to spot on the retina and to move a treatment laser beam from location to location on the retina.
Claims29
A system for laser treatment of a retina of a patient, the system comprising:
- a) a treatment source producing a treatment beam;
- b) one or more scanning elements configured to direct the treatment beam to various positions on the retina of a patient;
- and
- c) a processor operatively coupled to the one or more scanning elements, the processor configured to:
- 1) display a visible alignment pattern that encloses a plurality of treatment locations within the visible alignment pattern;
- and
- 2) deliver, responsive to an input from an operator and within a time period of about one second, sequential doses of laser energy to at least two of the treatment locations enclosed within the visible alignment pattern.
A system for laser treatment of tissue of a patient, the system comprising:
- a. a treatment source producing a treatment beam;
- b. one or more scanning elements configured to direct the treatment beam to various positions on tissue of a patient;
- and
- c. a processor operatively coupled to the one or more scanning elements, the processor configured to:
- 1) display a visible alignment pattern comprising a plurality of separate treatment locations on the tissue;
- and
- 2) deliver, responsive to an input from an operator and within a time period of about one second, sequential doses of laser energy to at least two of the treatment locations.
Dependencies are inferred from the claim text.