Kwa chingwe choponyera chingwe chokhala ndi ogulitsa diso lofewa , aliyense ali ndi nkhawa zapadera za izo, ndipo zomwe timachita ndi kukulitsa zofunikira zamalonda za kasitomala aliyense, kotero kuti khalidwe la chingwe chathu cha waya ndi ogulitsa diso lofewa lalandiridwa bwino ndi makasitomala ambiri ndipo amasangalala ndi mbiri yabwino m'mayiko ambiri. Lishenflex wire sling yokhala ndi ogulitsa diso ofewa ali ndi mawonekedwe & magwiridwe antchito & mtengo wampikisano, kuti mumve zambiri za chingwe cha waya ndi ogulitsa maso ofewa , chonde masukani kutilumikizani.