Patent ID: 8909327
Filing Date: 2014-12-09
Classification: A61B

Abstract:
1. An instrument for simultaneously monitoring tear film break-up, optical aberrations, and visual performance of an eye of a human subject, the instrument comprising three channels and a first and a second computer, (a) the first channel for monitoring optical aberrations in the eye, wherein the first channel comprises: (b) the second channel for monitoring tear film break up in the eye, wherein the second channel comprises: (c) the third channel for monitoring visual performance, wherein the third channel comprises a means for projecting visual test images onto the eye of the subject; (d) the first computer operably connected to the second camera for recording images of the tear film detected by the second camera; (e) the second computer operably connected to the first camera, to the means for displaying visual test images, and to an element by which the subject may adjust a feature of a visual test image; and (f) the first and second computers synchronized such that optical aberrations and tear film break up can be monitored simultaneously by the first and second cameras and the second computer configured such that the subject can maintain the visual test target at a detection threshold concurrent with the monitoring of tear film break up and optical aberrations.