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The Effect of the Use of Progressive Lens to Presbyopia Comfort in the Optical City of Padang
Author(s) -
Febry Corina,
Alvia Wesnita
Publication year - 2020
Language(s) - English
Resource type - Conference proceedings
DOI - 10.2991/ahsr.k.200523.048
Subject(s) - presbyopia , lens (geology) , optometry , optics , computer science , physics , medicine

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