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The impact resistance of chemically treated ophthalmic lenses

1 May 1973


This is a study to show that by using chemical treating process on ophthalmic lenses, the relative impact resistance of these lenses, can be maintained using much thinner lenses than if a heat treating method were used. All the lenses used in this study were thinner than 2.2mm center thickness and were tested by the standard drop test. The study contains a review of the related literature and recommendations for further study.


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