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1.56 I-Semi Finished Blue Cut Bifocal optical lens
Iilensi ze-Bifocal okanye iilensi ze-bifocal ziilensi ezineendawo ezimbini zokulungisa ngexesha elinye kwaye zisetyenziselwa ikakhulu ukulungisa i-presbyopia. Indawo ekude elungiswe yi-bifocal lens ibizwa ngokuba yindawo ekude, kwaye indawo ekufutshane ibizwa ngokuba kufutshane nendawo yokufunda. Ngokuqhelekileyo, ummandla we-distal mkhulu, ngoko ubizwa ngokuba yifilimu ephambili, kwaye ummandla osondeleyo uncinci, ngoko ubizwa ngokuba yi-sub-film.
