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1.56 Semi Ugqityiwe Umbono omnye Blue Cut Optical lenses
Ngokwesiqhelo, kukho iindidi ezintandathu zesalathiso serefractive yeresin lens: 1.50, 1.56, 1.60, 1.67, 1.71 kunye 1.74.Ukuba ufuna isalathisi esiphezulu se-refractive, unokuqwalasela kuphela iilensi zeglasi, ezine-1.80 kunye ne-1.90 ukukhetha kuzo.Yinto yokuba iilensi zeglasi zisetyenziswa kancinci kakhulu kwezi ntsuku, nangona amaphepha eglasi nawo anezalathisi ezisezantsi zokugqabhuka, ezifana ne-1.60 kunye ne-1.71.
