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Amalensi e-Blue Coat HMC angu-1.74 Optical
I-Eyeglass 1.74 isho ilensi enenkomba yokukhanya engu-1.74, okuyiyona enenkomba yokukhanya ephezulu kakhulu emakethe, kanye nelensi enobukhulu obuncane kakhulu. Amanye amapharamitha alingana, lapho inkomba yokukhanya iphakeme, ilensi iba ncane, futhi izoba yindleko ebiza kakhulu. Uma izinga le-myopia lingaphezu kwama-degree angu-800, kubhekwa njenge-myopia ephezulu kakhulu, kanti inkomba yokukhanya engu-1.74 iyafaneleka.