Ilensi ye-PC, eyaziwa nangokuthi “ifilimu yesikhala”, ngenxa yokumelana nomthelela omuhle kakhulu, futhi inengilazi evimbela izinhlamvu.Amalensi e-polycarbonate amelana kakhulu nomthelela, awaphuki.Anamandla aphindwe ka-10 kunengilazi noma ipulasitiki evamile, okuwenza alungele izingane, amalensi okuphepha, nomsebenzi wangaphandle.
Amalensi aqhubekayo, ngezinye izikhathi abizwa ngokuthi "ama-no-line bifocals," asusa imigqa ebonakalayo yama-bifocals endabuko nama-trifocals futhi afihle iqiniso lokuthi udinga izibuko zokufunda.
Omaka:i-bifocal lens, ilensi eqhubekayo, i-1.56 pc lens