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  • Title: [Distortion of progressive addition lenses and its physiologic evaluation].
    Author: Wehmeyer K, Gruna F.
    Journal: Klin Monbl Augenheilkd; 1989 Jul; 195(1):44-7. PubMed ID: 2796233.
    Abstract:
    The distortion of progressive addition lenses is one of the important criteria for the amicability of the lenses for the patient. A method to calculate the distortion for the using situation is shown and the application for three lens types demonstrated.
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