This analysis demonstrates optimal optical center positioning in lenses, suggesting vital fitting techniques for patients.
The design of corrected curve lenses utilizes the assumption that the optic axis of the lens passes through the center of rotation of the eye. For the patient to receive maximum benefit from such lens designs, the vertical and horizontal position of the optical center must be accurately specified and properly fitted. The positioning of the optical center depends on the stop distance, the pantoscopic angle, the lens decentration, and the alignment of the frame front. Tables indicating the changes in position of the optical center as a function of these factors are presented. Practical suggestions for the clinical use of this information are given.
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Eskridge et al. (1971) studied this question.
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