Patent ID: 11950969
Assignee: ALCON INC.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC A  G  H | IPC A  G  H

Claim 18:
19. A system for quantifying retinal traction on a retina of a patient eye, comprising:
a central processing unit (CPU); and
computer-readable media on which is recorded instructions, wherein execution of the instructions by the CPU causes the CPU to:
receive stereo image data from a stereo camera during an ophthalmic procedure, the stereo image data including stereo image pairs;
assign tracking points as coinciding pixels within the stereo image pairs;
automatically perform a digital image correlation (DIC) process using the stereo image pairs to thereby ascertain relative motion of the tracking points;
associate relative motion of the tracking points with the retinal traction, using a traction map, as a numeric traction quotient indicative of magnitude of the retinal traction; and
communicate a control signal to an external indicator device when the numeric traction quotient exceeds one or more calibrated traction thresholds.