초록 ▼

A method and apparatus for providing more precise aiming by an eye tracking system, including a registration, or aiming, laser, that provides for precise location of where the next laser ablation shot will impinge upon the eye. The method and apparatus further includes an aiming assistance fixture t

A method and apparatus for providing more precise aiming by an eye tracking system, including a registration, or aiming, laser, that provides for precise location of where the next laser ablation shot will impinge upon the eye. The method and apparatus further includes an aiming assistance fixture that provides a fixed frame of reference for locating the origin of the eye.

대표청구항 ▼

A computer system based method of accurately aiming a pulsed laser beam onto an eye in a system with a low power registration laser beam for providing a laser spot on the eye indicating where a shot of the pulsed laser beam will strike the eye the low power registration laser beam being parallel to

A computer system based method of accurately aiming a pulsed laser beam onto an eye in a system with a low power registration laser beam for providing a laser spot on the eye indicating where a shot of the pulsed laser beam will strike the eye the low power registration laser beam being parallel to the pulsed laser beam; an aiming system controlled by the computer system for adjusting the aim of the pulsed laser beam and the registration laser beam onto the eye; a computer system controlled eye tracking device that tracks a fixed point on the eye, that provides central point coordinates of a central point on the eye, and that provides registration coordinates of where the registration laser beam strikes the eye relative to the tracked central point on the eye; and the computer system running ablation profile software for calculating next shot coordinates of where on the eye relative to the central point on the eye a next pulse of the pulsed laser beam should be fired, the method comprising the compute system operated steps of; calculating the next shot coordinates: generating an error vector by comparing the registration coordinates of where the low power registration laser beam strikes the eye relative to the tracked central point of the eye to the next shot coordinates of where the next pulse of the pulsed laser beam should be fired relative to the tracked central point of the eye; adjusting the aim of the pulsed laser beam and the registration laser beam using the aiming system in response to said generated error vector; and firing a pulse of the pulsed laser beam after said adjusting step.