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1.56 Magalasi a Blue Cut Photochromic Gray HMC Optical
Lens ndi chinthu chowonekera chokhala ndi malo amodzi kapena angapo opindika opangidwa ndi zinthu zowoneka ngati galasi kapena utomoni.Pambuyo pa kupukuta, nthawi zambiri amasonkhanitsidwa mu magalasi okhala ndi galasi lagalasi kuti akonze masomphenya a wogwiritsa ntchito ndikupeza malo owonekera bwino.
Makulidwe a mandala amatengera mtundu wa refractive index ndi kuchuluka kwa disolo.Ma lens a myopic ndi owonda pakati komanso okhuthala mozungulira m'mphepete, pomwe ma lens a hyperopic ndi osiyana.Nthawi zambiri kukwezeka kwa digiriyo, disolo limakulirakulira;Kukwera kwa refractive index, lens imachepa
