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Magalasi a 1.56 Bifocal Blue Cut HMC Optical
Monga momwe dzinalo likusonyezera, galasi la bifocal lili ndi kuwala kawiri. Nthawi zambiri, limagwiritsidwa ntchito kuona mtunda, monga kuyendetsa galimoto ndi kuyenda; Chotsatirachi ndikuwona kuwala kwapafupi, kuwona pafupi, monga kuwerenga, kusewera foni yam'manja ndi zina zotero. Pamene lenzi ya bifocal idatuluka, idaonedwa ngati nkhani yabwino kwa anthu omwe ali ndi vuto la myopia + presbyopia, zomwe zimathandiza kupewa vuto losankha ndi kuvala pafupipafupi.
Chidutswa cha lenzi ya bifocal chinachotsa vuto la myopia ndi presbycusis frequent pick and wear, onani kutali ndi pafupi mukhoza kuona bwino, mtengo wake ndi wotsika mtengo.
