File:Trifocal Lens Marking.jpg

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A. Illustration of locations of distance, intermediate and near portions in a pair of trifocal lenses. B. Illustration of progressive lens markings.

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	15:28, May 22, 2023		936 × 840 (85 KB)	Isdin.oke (talk \| contribs)

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