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TECHNICAL PAPERS

The Conformity of a Soft Contact Lens on the Eye

[+] Author and Article Information
GuoMing T. Funkenbusch, Richard C. Benson

Mechanics of Flexible Structures Project, Department of Mechanical Engineering, University of Rochester, Rochester, New York 14627

J Biomech Eng 118(3), 341-348 (Aug 01, 1996) (8 pages) doi:10.1115/1.2796016 History: Received February 28, 1995; Revised August 28, 1995; Online October 30, 2007

Abstract

An axisymmetric elastic shell deformation model has been created to predict the conformity of a soft contact lens when pressed against the eye. Regions of contact and gap may be predicted, and the nonuniform reaction pressure between the lens and eye may also be found. This is important for issues like abrasion and comfort. Bending, membrane and transverse shear loads within the lens are also computed. Commercial soft contact lenses and a representative eye shape are used for the examples. We find that the uniformity of loading against the eye is strongly affected by the degree to which the lens is shaped to fit the eye, and relatively unaffected by the thickness of the lens.

Copyright © 1996 by The American Society of Mechanical Engineers
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