Pakunyamula nyali zotsika , aliyense ali ndi nkhawa zosiyanasiyana za izi, ndipo zomwe timachita ndikukulitsa zofunikira za kasitomala aliyense, motero mtundu wathu wowoneka bwino wa ophthalmic udalandiridwa bwino ndi makasitomala ambiri ndipo amakhala ndi mbiri yabwino m'maiko ambiri. Makina onyamula ophthalmic ovomerezeka a ophthalmic slit amakhala ndi magwiridwe antchito & mtengo wothandiza & mtengo wampikisano, kuti mumve zambiri pa nyali yotchinga yotsika , chonde khalani omasuka kulumikizana nafe.