Umuntu uthola kuze kufike ku-70% walo lonke ulwazi ngezitho zombono. Yingakho impilo yamehlo akufanele inganakwa. Asinambithi ukubaluleka okukhulu kumaphutha amaningi, ngoba aholela kuphela ekuwohlokeni kwekhwalithi yombono, hhayi ekulahlekelweni kwawo. Esinye sezifo ezinjalo yi-astigmatism.
I-Astigmatism iyisici sombonoFunda kabanzi…