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1.56 I-Bifocal Flat top / Round Top / Amalensi abonakalayo e-HMC ahlanganisiwe
Amalensi e-Bifocals amalensi ezibuko aqukethe zombili izindawo zokulungisa futhi asetshenziselwa ngokuyinhloko ukulungisa i-presbyopia. Indawo lapho ama-bifocal alungile ukubona kude ibizwa ngokuthi indawo yombono, kanti indawo elungisa eduze nendawo yokubona ibizwa ngokuthi eduze nendawo yombono kanye nendawo yokufunda. Ngokuvamile, indawo ekude inkulu, ngakho ibizwa nangokuthi ucezu oluyinhloko, futhi indawo eseduze incane, ebizwa ngokuthi i-sub slice.
