Makina a Optietry zida zamagetsi zoyeserera mawu a phoropter ndi kapangidwe katsopano, kudzera mwaukadaulo wokonza bwino, zomwe zimapangidwa ndi zida zapamwamba kwambiri, zomwe zimachitika mwa zida zonunkhira bwino. Ndife opanda chilichonse chokhudza zida za Optietry zida zamaso za Tyerter Buku la Phoropter , ndikutsimikizira mulingo wamtunduwu, kuti akubweretsereni bwino. Wokhala wowerengeka ndi dokotala wa Optil China Opter Dowter Mabuku a phoropter wopanga ndi wopereka, ngati mukufuna mawonedwe abwino kwambiri a Opter Orter Orter Goropter ndi mtengo wotsika, funsani US Tsopano!