Eye fixation control method for ophthalmological measurements - using digitised image of dye from video camera and rejecting measurements when eye is closed by blinking

摘要

The eye fixation control method involves using a video camera to determine the position and/or orientation of the patient's eye, with the camera image being displayed on a monitor. The image is digitised and stored in memory with a test image for the eye. The video camera image is reproduced at the same time as the test image to allow orthalmological measurements to determine the deviation of the eye from desired values. Measurements are rejected when the eye is covered by the eye-lid. ADVANTAGE - Simple and exact