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1.56 Bifocal Flat kumusoro / Round Pamusoro / Yakasanganiswa HMC lenzi dzemaziso
Bifocals Malenzi magirazi ekuona ane ese ari maviri ekugadzirisa nzvimbo uye anonyanya kushandiswa kugadzirisa presbyopia. Nzvimbo iyo bifocal inogadzirisa kuona kure inodaidzwa kuti far vision area, uye nzvimbo inogadzirisa pedyo nenzvimbo yechiratidzo inodaidzwa kuti pedyo nenzvimbo yechiratidzo nenzvimbo yekuverenga. Kazhinji, nzvimbo iri kure yakakura, saka inonziwo main slice, uye nzvimbo yepedyo idiki, inonzi sub slice.
