Bifocal lamba ruwan tabarau ba kawai don tsufa idanu.Ga yara masu tasowa a cikin shekaru 7, ruwan tabarau na multifocal tare da ikon karatu mai girma na iya rage jinkirin ci gaban myopia, sabon bincike ya gano.
A cikin gwaji na asibiti na shekaru uku na kusan yara 300, takardun magani na ruwan tabarau na bifocal tare da mafi girman kusa da gyaran aiki sun rage ci gaban myopia da kashi 43 idan aka kwatanta da ruwan tabarau na gani guda ɗaya.
Kodayake manya da yawa a cikin 40s sun ɗauki lokaci don daidaitawa zuwa takardar sayan ruwan tabarau na farko na multifocal, yaran da ke cikin binciken da suka yi amfani da ruwan tabarau masu laushi iri ɗaya na kasuwanci ba su da matsalolin hangen nesa duk da ƙarfin gyara su. hangen nesa da "ƙara" tsayin tsayin daka don aikin kusa da ke ƙalubalantar idanu masu matsakaici.
Bifocal Contact Lens
"Malamai suna buƙatar ruwan tabarau mai mahimmanci saboda ba za su iya mai da hankali kan karatu ba," in ji Jeffrey Walling, farfesa a fannin gani a Jami'ar Jihar Ohio kuma marubucin binciken.
“Ko da yake yara suna sanye da ruwan tabarau masu yawa, har yanzu suna iya mai da hankali, don haka kamar ba su ruwan tabarau na yau da kullun.Sun fi saukin shiga ciki fiye da manya.”
Binciken, mai suna BLINK (Bifocal Lenses for Children with Myopia), an buga shi a yau (Agusta 11) a cikin JAMA.
A cikin myopia, ko kusa da hangen nesa, ido yana girma zuwa siffar elongated a cikin hanyar da ba ta dace ba, dalilin da ya sa ya zama asiri. Nazarin dabba ya ba masana kimiyya damar yin amfani da ruwan tabarau don sarrafa ci gaban ido ta hanyar yin amfani da sashin karantawa na ruwan tabarau mai yawa. don mayar da hankali ga wani haske a gaban retina - Layer na nama mai haske a bayan ido - don rage girman ido.
"Wadannan ruwan tabarau masu yawa suna motsawa da ido kuma suna ba da ƙarin hankali a gaban retina fiye da yadda gilashin ke yi," in ji Waring, wanda kuma mataimakin shugaban bincike a Makarantar Optometry ta Jihar Ohio. "Kuma muna so mu rage girman girma. na idanu, saboda myopia yana faruwa ne sakamakon girma da tsayi da yawa."
Wannan binciken da sauransu sun riga sun sami ci gaba a cikin kula da yara masu ban mamaki, in ji Waring. Zaɓuɓɓuka sun haɗa da ruwan tabarau na multifocal, ruwan tabarau wanda ke sake fasalin cornea a lokacin barci (wanda ake kira orthokeratology), wani nau'i na ido na ido da ake kira atropine, da tabarau na musamman.
Myopia ba kawai rashin jin daɗi ba. ƙarancin hangen nesa yana inganta yuwuwar tiyatar laser don samun nasarar gyara hangen nesa kuma kada ku zama nakasa yayin da ba sa saka aligners, kamar lokacin da kuka tashi da safe.
Myopia kuma yana da yawa, yana shafar kusan kashi ɗaya bisa uku na manya a Amurka, kuma yana ƙara zama ruwan dare - kamar yadda masana kimiyya suka yi imanin cewa yara ba su da lokaci a waje fiye da yadda suke yi a baya. Myopia yana nuna farawa tsakanin shekaru 8 kuma 10 kuma yana ci gaba zuwa kusan shekaru 18.
Walline ya shafe shekaru da yawa yana nazarin amfani da ruwan tabarau na yara kuma ya gano cewa baya ga kasancewa mai kyau ga hangen nesa, ruwan tabarau na iya inganta girman kai ga yara.
“Yaron da na yi karatu mafi ƙanƙanta ɗan shekara bakwai ne,” in ji shi.” Ba dukan masu shekara 25 ba ne za su iya jure wa ruwan tabarau.Kimanin rabin yara masu shekaru 7 na iya dacewa da dacewa da ruwan tabarau na lamba, kuma kusan dukkanin masu shekaru 8 zasu iya. "
Bifocal Contact Lens
A cikin wannan gwaji, wanda aka gudanar a Jami'ar Jihar Ohio da Jami'ar Houston, yara masu shekaru 7-11 an sanya su ba tare da izini ba ga ɗaya daga cikin rukuni uku na masu sanye da ruwan tabarau: takardar magani na monovision ko multifocal tare da karuwar diopter 1.50 a cikin matsakaiciyar karatu ko Babban ƙara diopters 2.50. Diopter shine naúrar ma'auni don ikon gani da ake buƙata don gyara hangen nesa.
A matsayin ƙungiya, mahalarta suna da matsakaicin diopter na -2.39 diopters a farkon binciken. Bayan shekaru uku, yaran da suka saka ruwan tabarau masu daraja suna da ƙananan ci gaba na myopia da ƙananan ci gaban ido. Bifocals sun girma idanunsu 0.23 kasa da mm a cikin shekaru uku fiye da waɗanda suka sanya hangen nesa ɗaya. Matsakaicin ruwan tabarau ba sa rage ci gaban ido fiye da ruwan tabarau ɗaya.
Masu binciken sun gane cewa raguwar ci gaban ido yana buƙatar daidaitawa da duk wani haɗari da ke tattare da ba da damar yara su yarda da ƙwarewar karatu mai ƙarfi tun kafin yara suna buƙatar wannan matakin gyara.Akwai bambancin haruffa biyu tsakanin masu amfani da ruwan tabarau na monofocal da masu amfani da ruwan tabarau masu yawa a lokacin gwada iyawar su na karanta haruffa masu launin toka akan farin bango.
"Yana game da nemo wuri mai dadi," in ji Waring. "A gaskiya ma, mun gano cewa ko da babban ƙarfin da ya rage bai rage hangen nesa ba sosai, kuma ba ta hanyar da ta dace ta asibiti ba."
Ƙungiyar binciken ta ci gaba da bin mahalarta guda ɗaya, suna kula da su tare da manyan ruwan tabarau na bifocal na tsawon shekaru biyu kafin su canza su duka zuwa ruwan tabarau na hangen nesa guda ɗaya.
“Tambayar ita ce, muna rage girman idanu, amma me zai faru idan muka fitar da su daga maganin?Shin suna komawa inda aka fara shirya su?Dorewar tasirin jiyya shine abin da za mu bincika, ”in ji Walline..
Cibiyar Nazarin Ido ta Ƙasa, wani ɓangare na Cibiyoyin Kiwon Lafiyar Jama'a, kuma Bausch + Lomb ya tallafa wa binciken, wanda ke ba da mafita na ruwan tabarau.
Lokacin aikawa: Jul-17-2022
