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1.56 Bifocal Flat top / Round Top / Blended HMC Optical lens
Magalasi a Bifocals ndi magalasi owonera omwe amakhala ndi zowongolera zonse ndipo amagwiritsidwa ntchito makamaka pokonza presbyopia.Malo omwe ma bifocals amawongolera masomphenya akutali amatchedwa kutali vision area, ndipo malo omwe amawongolera pafupi ndi masomphenya amatchedwa pafupi ndi masomphenya ndi malo owerengera.Kawirikawiri, malo akutali ndi aakulu, choncho amatchedwanso kagawo kakang'ono, ndipo malo apafupi ndi ochepa, otchedwa sub slice.
