title: Comparative investigations of progressive lenses.
abstract: Different types of progressive addition lenses were compared with each other. It was our aim to measure all parameters in such a way that they were consistent with the normal wearing situation. The distribution of the spherical power and astigmatism was measured with a special focimeter. The induced distortion, which is important for patient acceptance, was determined by a photographic method. There are significant differences between the various types of progressive addition lenses. However, objective information is not sufficient to resolve the subjective question of patient acceptance.
authors.affiliation: Department of Optometry, Fachhochschule (Technical University), Aalen, West Germany.
authors.forename: H
authors.initials: H
authors.lastname: Diepes
authors.forename: A
authors.initials: A
authors.lastname: Tameling
mesh_terms: D005139:Eyeglasses; D006801:Humans; D055095:Optics and Photonics; D010469:Perceptual Distortion; D011305:Presbyopia / Q000628:therapy*; D014792:Visual Acuity