Iintsana zingenamntu, kwaye njengoko zikhulile zakhula zakhula de bafike kwinqanaba le "Amehlo" egqibeleleyo "egqibeleleyo, ebizwa ngokuba yi-Emmetropia.
Akuzange kusebenze ngokupheleleyo oko kufanelekileyo ukuba iliso liyeki ixesha lokukhula, kodwa siyayazi ukuba kubantwana abaninzi iliso liyaqhubeka nokukhula i-Emmetropia idlule i-Emmetropia kwaye inomdla.
Ngokusisiseko, xa iliso likhula ixesha elide kakhulu ukukhanya ngaphakathi kweliso liza kugxila phambi kwe-retina, ngenxa yoko kufuneka sinxibe iiglasi kwaye sijonge ukukhanya kwi-retina kwakhona.
Xa sibadala, sibandezeleka ngokwahlukileyo. Izicubu zethu ziba yinto enqwenelekayo kwaye iilensi aziziqhelanise ngokulula ukuze siqale ukulahleka kakuhle.
Uninzi lwabantu abadala kufuneka banxibe ii-bifocal ezinelensi ezimbini ezahlukeneyo - umntu alungiselele iingxaki ngombono osondeleyo kwaye omnye alungise iingxaki ngombono.
Kule mihla, ngaphezu kwesiqingatha sabantwana kunye nolutsha oluse-china luye nophando, ngokutsho kweearhente zikarhulumente eziphambili, ezibiza imizamo eqinileyo yokuthintela nokulawula imeko. Ukuba uhamba ezitratweni zaseTshayina namhlanje, uya kukhawuleza uqaphele ukuba uninzi lwabantu abancinci banxiba iiglasi.
Ngaba yingxaki yaseTshayina kuphela?
Ngokuqinisekileyo akunjalo. Ukukhula kokukhula kweMyopia ayisiyongxaki ye-chinese, kodwa yiyo ingakumbi eMpuma Asia. Ngokutsho kophando olupapashwe kwijenali yezonyango iLancet ngo-2012, eMzantsi Korea bakhokelela kwipakethe, ngepesenti ezingama-96 zabantu abadala abanomkhosi we-myopia; kwaye ireyithi yeSeoul iphezulu nangaphezulu. E-Singapore, inani lingama-82%.
Luthini unobangela wengxaki yendalo iphela?
Izinto ezininzi ezinxulunyaniswa nenqanaba eliphezulu lokungathandeki; Kwaye iingxaki ezintathu eziphambili zifunyaniswa ukuba zinqongophele, ukungabikho kobuthongo obaneleyo ngenxa yomsebenzi onzima wokuphuma kunye nokusetyenziswa kakhulu kweemveliso ze-elektroniki.
