Patent ID: RE42998

Claim:
A System for determining the orientation of the eye consisting of the following sub-systems: an x, y high-speed eye tracking system, for measuring the very fast translation or saccadic motion of the eye, relative to an ophthalmic surgical, diagnostic or treatment device or instrument; a second position measurement system for measuring slower eye movements, such as multiple dimensions of eye position and / or position of eye parts, relative to an ophthalmic surgical, diagnostic or treatment device or instrument; and a system for combining the measurements of the two previous systems for obtaining a multiple dimensional model of the eye position that is more accurate than the model obtainable from either system individually; wherein the x, y eye tracking system is either a multiple imaging device solution in which one imaging device is coaxial to the eye and either one or two off-axis imaging devices using selective line readout, or a single high speed imaging device using selective line readout, said system comprising an imaging device sensor configured to individually address and read a set of selected lines; a processing device for processing data which has been transferred from said imaging device sensor to said processing device; and a laser treatment device the position of which is controlled by a laser position control, wherein, while the rest of the image is being transferred, the set of selected lines which has already been transferred is processed to obtain a processing result which is used to position the laser position control of said laser treatment device, and wherein after the image has been fully transferred to a processing device, the full image is processed in order to establish a future set of selected lines based on a tracked landmark.