Graphic presentation of computer-analyzed keratoscope photographs
L. J. Maguire, D. E. Singer and S. D. Klyce
We describe a corneal topography analysis system that creates accurate
high-resolution graphics of corneal surface power from computer analysis of
keratoscope photographs, and we present several examples of corneal shape
analyses. The major improvement in the updated version presented here is
the development of a contour map of corneal surface power. Improvements in
computer algorithms used to analyze the raw data obtained from the
keratoscope photographs have also been made, resulting in increased
accuracy. This system allows the ophthalmologist to see the patterns of
power distribution on the corneal surface more easily than is possible by
visual inspection of keratoscope photographs. Improved corneal topography
analysis should find wide clinical application in the study of refractive
corneal surgery techniques and in the study of corneal disorders that cause
irregular astigmatism.
