● Uchungechunge lwamalensi esitoko avamile luhlanganisa cishe wonke amalensi anemiphumela ehlukahlukene yokubuka kunkomba ye-refractive: umbono owodwa, amalensi e-bifocal kanye ne-progressive, futhi ihlanganisa izigaba zemikhiqizo eqediwe neseqediwe kancane, engahlangabezana nezidingo zabantu abaningi abanokufiphala. umbono. Ukulungiswa kokuphambuka kombono.
● Kutholakala ngezinto ezihlukahlukene, okuhlanganisa inhlaka, i-polycarbonate, nezinto ezinenkomba ephezulu, ezinikeza amazinga ahlukahlukene okujiya, isisindo, nokuqina. Wonke ama-lens ayatholakala futhi ngezingubo ezihlukene, ezifana nama-anti-reflective coatings ukuze kuncishiswe ukukhanya okuxhophayo futhi kuthuthukiswe ukucaca okubonakalayo, noma ama-UV ukuvikela amehlo emisebeni eyingozi ye-ultraviolet. Zingenziwa zibe izitayela ezahlukene zamafreyimu futhi zingasetshenziswa njengezibuko zokufunda, izibuko zelanga, noma ukulungisa umbono webanga.