Makanda amaona patali, ndipo akamakula maso awo amakulanso mpaka atafika pamlingo wa maso “abwino kwambiri” otchedwa emmetropia.
Sizikudziwika bwino zomwe zimasonyeza kuti diso ndi nthawi yoti lisiye kukula, koma tikudziwa kuti ana ambiri amapitirizabe kukula kuposa emmetropia ndipo amaona zinthu pafupi.
Mwachidule, diso likakula kwambiri, kuwala komwe kuli mkati mwa diso kumawonekera patsogolo pa retina osati pa retina, zomwe zimapangitsa kuti tisaone bwino, choncho tiyenera kuvala magalasi kuti tisinthe kuwala ndikuyikanso kuwala pa retina.
Tikakalamba, timakumana ndi mavuto osiyanasiyana. Minofu yathu imakhala yolimba ndipo lenzi siisintha mosavuta kotero timayamba kutaya masomphenya.
Anthu ambiri okalamba ayenera kuvala ma bifocal omwe ali ndi ma lens awiri osiyana - limodzi lothandiza kuthetsa mavuto a masomphenya apafupi ndi lina lothandiza kuthetsa mavuto a masomphenya akutali.
Masiku ano, ana ndi achinyamata oposa theka ku China saona bwino, malinga ndi kafukufuku wa mabungwe akuluakulu aboma, womwe umafuna kuti pakhale khama lolimba popewa ndikuwongolera vutoli. Ngati mukuyenda m'misewu ya ku China masiku ano, mudzazindikira mwachangu kuti achinyamata ambiri amavala magalasi.
Kodi ndi vuto la ku China kokha?
Ayi ndithu. Kuchuluka kwa matenda a myopia sikuti ndi vuto la ku China kokha, komanso ndi vuto la ku East Asia. Malinga ndi kafukufuku wofalitsidwa mu The Lancet medical journal mu 2012, South Korea ikutsogolera gululi, ndi 96% ya achinyamata omwe ali ndi matenda a myopia; ndipo chiŵerengero cha anthu ku Seoul n'chokwera kwambiri. Ku Singapore, chiwerengerochi ndi 82%.
Kodi vuto la padziko lonseli ndi chiyani?
Zinthu zingapo zimagwirizanitsidwa ndi kuchuluka kwa anthu osawona pafupi; ndipo mavuto atatu akuluakulu amapezeka ndi kusowa zochita zolimbitsa thupi panja, kusowa tulo tokwanira chifukwa cha ntchito yambiri yopuma kuntchito komanso kugwiritsa ntchito kwambiri zinthu zamagetsi.
