Magalasi okhudzana ndi bifocal salinso a maso okalamba okha.Kwa ana a myopic omwe ali ndi zaka 7, ma lens a multifocal omwe ali ndi luso lowerenga kwambiri amatha kuchepetsa kwambiri kukula kwa myopia, kafukufuku watsopano wapeza.
M'zaka zitatu zoyesa zachipatala za ana pafupifupi 300, malangizo a lens okhudzana ndi bifocal omwe ali pafupi kwambiri ndi ntchito yowongolera anachedwetsa kupitirira kwa myopia ndi 43 peresenti poyerekeza ndi magalasi a masomphenya amodzi.
Ngakhale akuluakulu ambiri a zaka za m'ma 40 adatenga nthawi kuti azolowere ma lens awo oyambirira a multifocal contact lens, ana mu phunziroli omwe ankagwiritsa ntchito ma lens omwe amapezeka pamalonda analibe vuto la masomphenya ngakhale kuti amatha kuwongolera kwambiri. masomphenya ndi "kuwonjezera" kutalika kwa ntchito yapafupi yomwe imatsutsa maso azaka zapakati.
Bifocal Contact Lens
"Akuluakulu amafunikira magalasi olumikizana ndi ma multifocal chifukwa sangathenso kukhazikika pakuwerenga," adatero Jeffrey Walling, pulofesa wa optometry ku Ohio State University komanso wolemba wamkulu wa kafukufukuyu.
“Ngakhale kuti ana amavala magalasi osiyanasiyana, amatha kuyang’anabe maso, choncho zimakhala ngati kuwapatsa magalasi nthawi zonse.Iwo ndi osavuta kukhala nawo kuposa akuluakulu.”
Phunziroli, lotchedwa BLINK (Bifocal Lenses for Children with Myopia), linasindikizidwa lero (August 11) mu JAMA.
Mu myopia, kapena kuyang'ana pafupi, diso limakula kukhala lalitali m'njira yosagwirizana, chifukwa chake sichidziwikabe.Kafukufuku wa zinyama apatsa asayansi kuthekera kwa ma lens kuti athe kulamulira kukula kwa diso pogwiritsa ntchito gawo lowerengera la multifocal contact lens. kuyang'ana kuwala kutsogolo kwa retina - gawo la minofu yomwe imamva kuwala kumbuyo kwa diso - kuchepetsa kukula kwa diso.
"Magalasi olumikizana ndi ma multifocal awa amayenda ndi diso ndipo amayang'ana kwambiri kutsogolo kwa retina kuposa momwe magalasi amachitira," atero Waring, yemwenso ndi dipatimenti ya kafukufuku ku Ohio State's School of Optometry." Ndipo tikufuna kuchepetsa kukula kwa maso, chifukwa myopia imayamba chifukwa cha kukula kwa maso.
Kafukufukuyu ndi ena apita patsogolo kale pochiza ana a myopic, Waring adati.Zosankha zimaphatikizapo magalasi okhudzana ndi multifocal, ma lens omwe amatsitsimutsa cornea panthawi ya kugona (otchedwa orthokeratology), mtundu wina wa madontho a maso otchedwa atropine, ndi magalasi apadera.
Myopia si vuto chabe.Myopia imawonjezera chiopsezo cha ng'ala, kutsekeka kwa retina, glaucoma, ndi kuwonongeka kwa myopic macular.Zinthu zonsezi zimatha kusokoneza maso, ngakhale ndi magalasi kapena ma lens. kusayang'ana pafupi pang'ono kumathandizira mwayi wa opaleshoni ya laser kuti muwongolere bwino masomphenya komanso kuti musamalepheretse osavala zolumikizira, monga mukadzuka m'mawa.
Myopia imakhalanso yofala, yomwe imakhudza pafupifupi gawo limodzi mwa magawo atatu a akuluakulu ku US, ndipo ikukula kwambiri - monga momwe asayansi amakhulupirira kuti ana amathera nthawi yochepa panja kusiyana ndi kale.Myopia imakonda kuyamba pakati pa zaka 8 ndi 10 ndikupita patsogolo mpaka zaka 18.
Walline wakhala akuphunzira kugwiritsa ntchito ma lens a ana kwa zaka zambiri ndipo wapeza kuti kuwonjezera pa kukhala abwino kwa masomphenya, magalasi olumikizana nawo amathanso kukulitsa ulemu wa ana.
Iye anati: “Mwana wamng’ono kwambiri amene ndinaphunzira naye anali ndi zaka 7.” Sikuti ana onse azaka 25 angathe kupirira magalasi oonera zinthu.Pafupifupi theka la ana azaka 7 akhoza kukwanira bwino m’magalasi, ndipo pafupifupi ana onse a zaka 8 angathe.”
Bifocal Contact Lens
Mu mayeserowa, omwe anachitidwa ku The Ohio State University ndi University of Houston, ana a myopic a zaka zapakati pa 7-11 anapatsidwa mwachisawawa ku gulu limodzi mwa magulu atatu a ovala lens: mankhwala a monovision kapena multifocal ndi kuwonjezeka kwa 1.50 diopter pa kuwerenga kwapakati kapena Mkulu wowonjezera 2.50 diopters.Diopter ndi gawo la kuyeza kwa mphamvu ya kuwala yomwe imayenera kukonza masomphenya.
Monga gulu, ophunzira anali ndi diopter wapakati wa -2.39 diopters kumayambiriro kwa phunzirolo.Pambuyo pa zaka zitatu, ana omwe ankavala magalasi apamwamba kwambiri anali ndi kuchepa kwa myopia komanso kukula kwa diso. ma bifocals amakula maso awo ndi 0.23 mm kuchepera zaka zitatu poyerekeza ndi omwe amavala masomphenya amodzi.
Ofufuzawo anazindikira kuti kuchepetsa kukula kwa maso kuyenera kukhala koyenera motsutsana ndi zoopsa zilizonse zomwe zimachititsa kuti ana avomereze luso lowerenga mwamphamvu nthawi yayitali asanafunikire kuwongolera. kuyesa luso lawo lowerenga zilembo zotuwa pamtundu woyera.
"Ndikupeza malo okoma," adatero Waring. "M'malo mwake, tidapeza kuti ngakhale mphamvu zochulukirapo sizidachepetse kuwona kwawo, ndipo osati mwanjira yoyenera."
Gulu lofufuzira lidapitilizabe kutsatira omwe adatenga nawo gawo, kuwasamalira ndi magalasi apamwamba kwambiri a bifocal kwa zaka ziwiri asanawasinthe onse kukhala magalasi olumikizana ndi masomphenya amodzi.
“Funso n’lakuti, maso timachedwetsa kukula, koma chimachitika n’chiyani tikawachotsa m’mankhwala?Kodi amabwerera kumene adakonzedweratu?Kukhalitsa kwamankhwala ndikomwe tikuwona, "adatero Walline..
Kafukufukuyu adathandizidwa ndi National Eye Institute, gawo la National Institutes of Health, ndipo mothandizidwa ndi Bausch + Lomb, omwe amapereka mayankho a lens.
Nthawi yotumiza: Jul-17-2022
