Nrog rau xyoo ntawm kev paub nyob hauv cov cuab yeej tsim kho kho qhov muag Suav , Desftware tau muab cov cuab yeej siv kho kho kho . Optical Qhov muag online Cov Dester Charage Ntxiv nrog rau cov khoom lag luam hauv qab no, koj tuaj yeem hloov kho koj tus kheej qhov kev ntsuas kho qhov muag ntawm Tuam Tshoj Optical Digital Auto lensmeter raws li koj cov kev xav tau tshwj xeeb.