Vacheche chaizvoizvo vanoona zviri kure, uye sezvavanokura maziso avo anokurawo kutozosvikira vasvika padanho rokuona “kwakakwana,” rinonzi emmetropia.
Hazvina kunyatsogadziriswa kuti chii chinotarisa ziso kuti inguva yekumira kukura, asi tinoziva kuti muvana vazhinji ziso rinoramba richikura kupfuura emmetropia uye vanove vachiona pedyo.
Zvikuru, kana ziso rakura zvakanyanyisa chiedza chiri mukati meziso chinouya pakutarisa pamberi pe retina kwete pa retina, zvichikonzera kuona kwakajeka, saka tinofanira kupfeka magirazi kuti tichinje maoptics uye kunangisa mwenje paretina zvakare.
Patinochembera, tinotambura neimwe nzira. Matishu edu anooma uye lenzi haigadzirise zviri nyore saka tinotanga kurasikirwa nekuona zvakare.
Vanhu vakuru vazhinji vanofanirwa kupfeka mabifocals ane malenzi maviri akasiyana-imwe yekugadzirisa matambudziko nekuona pedyo uye imwe kugadzirisa matambudziko nekuona kure.
Mazuva ano, inopfuura hafu yevana nevechiri kuyaruka muChina vari kuona zviri pedyo, maererano neongororo yakaitwa nemasangano epamusoro ehurumende, ayo akakurudzira kuti paitwe nhamburiko dzekudzivirira nekudzora mamiriro acho ezvinhu. Kana iwe ukafamba mumigwagwa yeChina nhasi, iwe unokurumidza kuona kuti vechidiki vazhinji vanopfeka magirazi.
Idambudziko reChinese chete here?
Kwete. Kuwedzera kuwanda kwe myopia harisi dambudziko reChinese chete, asi rinonyanya kuEast Asia. Maererano neongororo yakabudiswa muThe Lancet medical magazine muna 2012, South Korea inotungamira paki, ne96% yevechidiki vane myopia; uye chiyero cheSeoul chakatokwira. MuSingapore, nhamba yacho i82%.
Chii chiri chisakiso chikuru cheichi chinetso chenyika yose?
Zvinhu zvakawanda zvinobatanidzwa nehuwandu hwepamusoro hwekuona pedyo; uye matambudziko matatu epamusoro anowanikwa kushaikwa kwekuita basa rekunze, kushaikwa kwekurara kwakakwana nekuda kwebasa rinorema rekuwedzera uye kushandisa zvakanyanya zvigadzirwa zvemagetsi.
