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US 7,452,081 B2Granted
Scanning ophthalmic fixation method and apparatus
AssigneeOptimedica Corporation
InventorsMichael W. Wiltberger, Dan E. Andersen
Life of this patent
Estimating the term…
Abstract
An apparatus and method for treating and/or diagnosing a patient's eye. A light source produces fixation light and procedure light. A scanning device deflects the fixation light to produce a fixation pattern of the fixation light on the eye, and deflects the procedure light to produce a procedure pattern of the procedure light on the eye. A controller controls the scanning device such that the fixation and procedure patterns move relative to each other, and/or the fixation pattern dynamically changes.
Claims25
An optical scanning system for treating and/or diagnosing a patient's eye, comprising:
- a light source for producing fixation light which is light for attracting and keeping said patient's gaze in a nominally fixed direction and procedure light which is light for treating and/or diagnosing said patient's eye;
- a scanning device for deflecting the fixation light to produce a fixation pattern of the fixation light on the eye, and for deflecting the procedure light to produce a procedure pattern of the procedure light on the eye;
- and
- a controller for controlling the scanning device such that the fixation pattern dynamically changes in shape or color.
1 more element
An optical scanning system for treating and/or diagnosing a patient's eye, comprising:
- a light source for producing fixation light which is light for attracting and keeping said patient's gaze in a nominally fixed direction and procedure light which is light for treating and/or diagnosing said patient's eye;
- a scanning device for deflecting the fixation light to produce a fixation pattern of the fixation light on the eye, and for deflecting the procedure light to produce a procedure pattern of the procedure light on the eye;
- and
- a controller for controlling the scanning device such that the fixation pattern dynamically changes;
- wherein:
- the light source produces additional light;
- the scanning device deflects the additional light to produce a system information pattern of the additional light on the eye;
- and
- the system information pattern indicates status information of the system.
6 more elements
An optical scanning system for treating and/or diagnosing a patient's eye, comprising:
- a light source for producing fixation light which is light for attracting and keeping said patient's gaze in a nominally fixed direction and procedure light which is light for treating and/or diagnosing said patient's eye;
- a scanning device for deflecting the fixation light to produce a fixation pattern of the fixation light on the eye, and for deflecting the procedure light to produce a procedure pattern of the procedure light on the eye;
- a controller for controlling the scanning device such that the fixation pattern dynamically changes;
- and
- a movable focusing optical element for altering a size of at least one of the fixation pattern and the procedure pattern on the eye.
2 more elements
A method of treating and/or diagnosing a patient's eye, comprising:
- generating fixation light which is light for attracting and keeping said patient's gaze in a nominally fixed direction;
- generating procedure light which is light for treating and/or diagnosing said patient's eye;
- deflecting the fixation light to produce a fixation pattern of the fixation light on the eye;
- deflecting the procedure light to produce a procedure pattern of the procedure light on the eye;
- and
- dynamically changing a shape or a color of the fixation pattern on the eye.
3 more elements
A method of treating and/or diagnosing a patient's eye, comprising:
- generating fixation light which is light for attracting and keeping said patient's gaze in a nominally fixed direction;
- generating procedure light which is light for treating and/or diagnosing said patient's eye;
- deflecting the fixation light to produce a fixation pattern of the fixation light on the eye;
- deflecting the procedure light to produce a procedure pattern of the procedure light on the eye;
- dynamically changing the fixation pattern on the eye;
- generating additional light;
- and
- deflecting the additional light to produce a system information pattern of the additional light on the eye, wherein the system information pattern indicates status information.
5 more elements
A method of treating and/or diagnosing a patient's eye, comprising:
- generating fixation light which is light for attracting and keeping said patient's gaze in a nominally fixed direction;
- generating procedure light which is light for treating and/or diagnosing said patient's eye;
- deflecting the fixation light to produce a fixation pattern of the fixation light on the eye;
- deflecting the procedure light to produce a procedure pattern of the procedure light on the eye;
- dynamically changing the fixation pattern on the eye;
- and
- moving a focusing optical element to altering a size of at least one of the fixation pattern and the procedure pattern on the eye.
4 more elements
A method of treating and/or diagnosing a patient's eye, comprising:
- generating fixation light which is light for attracting and keeping said patient's gaze in a nominally fixed direction;
- generating procedure light which is light for treating and/or diagnosing said patient's eye;
- deflecting the fixation light to produce a fixation pattern of the fixation light on the eye;
- deflecting the procedure light to produce a procedure pattern of the procedure light on the eye;
- and
- dynamically changing the fixation pattern on the eye;
- wherein:
- the deflectings are performed such that the fixation pattern and the procedure pattern do not overlap each other on the eye;
- the deflecting of the fixation light includes moving a first optical element;
- and
- the deflecting of the procedure light includes moving a second optical element independently from the moving of the first optical element.
8 more elements
Dependencies are inferred from the claim text.