Accession Number : AD0684371

Title :   AN EVALUATION OF OPHTHALMIC PLASTIC (CR-39) LENSES IN THE U. S. ARMY AVIATION ENVIRONMENT

Corporate Author : ARMY AEROMEDICAL RESEARCH LAB FORT RUCKER AL

Personal Author(s) : Crosley, John K ; Bailey, Robert W ; Fischer, Frank H

PDF Url : AD0684371

Report Date : Feb 1969

Pagination or Media Count : 23

Abstract : Thirty rated U. S. Army aviators with various types of refractive errors were selected to wear-test both clear and tinted plastic (CR-39) ophthalmic lenses for a period of six months. Subjective evaluations were made in the areas of impact resistance, scratch resistance, weight, optical clarity, comfort, cleaning ease, resistance to breakage, and accumulation of foreign material. User acceptance was quite good. Lens scratching was not found to be a significant problem.

Descriptors :   *PLASTIC LENSES, ACCEPTABILITY, EYEGLASSES

Subject Categories : Optical Detection and Detectors

Distribution Statement : APPROVED FOR PUBLIC RELEASE