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Magalasi a 1.74 Blue Coat HMC Optical
Galasi la maso 1.74 limatanthauza lenzi yokhala ndi chizindikiro cha refractive cha 1.74, chomwe ndi chomwe chili ndi chizindikiro cha refractive chapamwamba kwambiri pamsika, ndi chomwe chili ndi makulidwe a lenzi yopyapyala kwambiri. Magawo ena ali ofanana, chizindikiro cha refractive chikakhala chachikulu, lenzi imakhala yopyapyala, ndipo idzakhala yokwera mtengo kwambiri. Ngati digiri ya myopia ili yoposa madigiri 800, imaonedwa kuti ndi myopia yokwera kwambiri, ndipo chizindikiro cha refractive cha 1.74 ndi choyenera.
