Ƙananan Ƙaunar Ƙauna Mai Ƙaunar Jafananci 100cm

Adadin yaran da ke buƙatar gilashin don ganin abubuwa masu nisa - yanayin da aka sani da myopia - yana ƙaruwa kuma hasashen da ake yi a halin yanzu ya nuna cewa nan da shekara ta 2050, kashi 50 na al'ummar duniya za su kamu da cutar.

A cikin 1970s, kashi 25 cikin 100 na jama'ar Amirka sun sami myopia; amma bayan shekaru 30 kawai cutar ta karu zuwa kashi 42 cikin dari. Kodayake kwayoyin halitta ne ke da alhakin wasu lokuta na myopia, masana kimiyya yanzu sun yi imanin cewa yanayi ma yana taka muhimmiyar rawa. Yanzu masu bincike sun fara warware dalilan da ke haifar da tashin gwauron zabi tare da tsara hanyoyin rage gudu da kuma dawo da raguwar hangen nesa na yara - wanda ke da mahimmanci ga yanayin rayuwarsu gaba ɗaya da haɗarin haɓakar hasarar hangen nesa daga baya a rayuwarsu.

Nick Onken, wani likitan ido a Jami'ar Alabama, Birmingham ya ce: "Yara suna zama masu hangen nesa da sauri fiye da yadda muka taɓa gani a baya." "Yana da sauri fiye da ko da kwayoyin halitta kadai za su iya lissafawa." Doll Silicon Sex Doll

Onken ya ce: “Mun san shekaru da yawa cewa idan mutum ya fi kusa da hangen nesa, zai fi yuwuwar rasa hangen nesa a lokacin da suka tsufa, saboda yanayi kamar ciwon ido, glaucoma, macular degeneration da cataracts.”

Myopia sau da yawa yana farawa a lokacin ƙuruciya, saboda rashin daidaituwa tsakanin yadda ido ke girma da kuma inda haske ke mai da hankali kan retina.

"Yanayin myopia ko kusa da hangen nesa yana faruwa ne saboda gaskiyar cewa ido yayi tsayi da yawa," in ji Carolyn Lederman, likitan ido da ke Purchase, New York. Lokacin da kwayar ido ta girma fiye da yadda ya kamata, wannan yana haifar da yanayi inda abubuwan da suka fi mayar da hankali na ido - cornea da lens - suna haskaka haske a gaban retina, maimakon a kan retina, wanda ke haifar da abubuwa masu nisa. bayyana blurry.Real Japan Jima'i Doll

Kamar yadda ya fito, shekarun da yaro ya fara zama mai ban mamaki sau da yawa yana tsinkayar yadda mummunan hangen nesa zai ƙare.

“Babban mai hasashen yadda za ku kasance kusa da hangen nesa, shineyausheka zama mai hangen nesa,” in ji Jeffrey Walline, masanin ido kuma mataimakin shugaban bincike a Jami’ar Jihar Ohio. Kamar yadda Walline ya bayyana, ƙaramin yaro shine lokacin da suka fara zama kusa da hangen nesa, mafi muni zai ƙare kamar yadda, saboda tsawon lokacin da ƙwallon ido ya yi girma fiye da yadda ya kamata. Ga yawancin yara, hangen nesansu zai daidaita a ƙarshen shekarun samartaka, kodayake ga wasu tsirarun mutane, wannan tsari zai kasance har zuwa tsakiyar 20s.