METHOD FOR DETERMINING DISTANCES IN THE ANTERIOR OCULAR SEGMENT

摘要

The invention relates to a method for determining distances in the anterior ocular segment, preferably of the pupils and/or the diameter of the iris, wherein the image of at least part of the eye is recorded and digitized usin g an imaging device and an array for illuminating the eye. On the basis of sai d digital image, a center of gravity analysis and the determination of the central point are carried out, especially for the position of the pupils, by conducting an intensity and threshold analysis as rough determination. Based on said rough determination, a fine detection of the position of the edges o f the pupil and/or the edges of the iris is carried out. Additionally, the ang le between the visual axis and the optical axis of the eye can be determined fr om the position of a fixed reflection to the center of the pupil and/or the center of the iris.