Methods and systems for laser calibration and eye tracker...

Details Methods and systems for laser calibration and eye tracker... Methods and systems for laser calibration and eye tracker...

2007-05-30

2008-11-25

Pham, Hoa Q (Department: 2886)

Optics: measuring and testing

Standard

C606S005000, C250S252100

Reexamination Certificate

active

07456949

ABSTRACT:
The present invention provides methods, systems, and apparatus for calibrating a laser ablation system, such as an excimer laser system for selectively ablating a cornea of a patient's eye. The invention also facilitates alignment of eye tracking cameras that measure a position of the eye during laser eye surgery. A calibration and alignment fixture for a scanning laser beam delivery system having eye tracking cameras may include a structure positionable in a treatment plane. The structure having a feature directing laser energy incident thereon to a calibration energy sensor, at least one reference-edge to determine a characteristic of the laser beam (shape, dimensions, etc.), and an artificial pupil to determine alignment of the eye tracking cameras with the laser system.

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