Lenses-ka laba-geesoodka ah hadda maaha kuwa loogu talagalay indhaha gabowga. Carruurta da'doodu ka yar tahay 7 jir, muraayadaha indhaha ee kala-duwan ee leh awoodda wax-akhrinta ee qiyaasta sare waxay si weyn u dhimi karaan horumarka myopia, cilmi-baaris cusub ayaa la ogaaday.
Saddex sano oo tijaabo caafimaad ah oo ku dhawaad 300 oo carruur ah, daawoyinka lens-ka-xiniinyaha laba-geesoodka ah ee leh hagaajinta ugu sarreysa ee shaqada ayaa hoos u dhigtay horumarka myopia boqolkiiba 43 marka loo eego lensiska indhaha ee hal aragga ah.
Inkasta oo dad badan oo qaan-gaar ah oo 40 jir ah ay qaateen wakhti si ay ula qabsadaan qoritaanka lens-ka lens-ka ee ugu horreeya, carruurta daraasadda ku jirta oo adeegsatay lenses jilicsan oo ganacsi ahaan loo heli karo ma laha dhibaatooyin aragga inkasta oo ay awood u leeyihiin sixitaanka. aragti iyo "kordhin" dhererka focal ee shaqada dhow taas oo caqabad ku ah indhaha da'da dhexe.
Muraayadaha Xidhiidhka Bifocal
"Dadka qaangaarka ah waxay u baahan yihiin lenses-ka-xidhiidhyada kala duwan sababtoo ah hadda ma awoodaan inay xoogga saaraan wax-akhriska," ayuu yiri Jeffrey Walling, oo ah borofisar ku takhasusay indhaha oo ka tirsan Jaamacadda Ohio State iyo qoraaga hormuudka ah ee daraasadda.
"Inkasta oo caruurtu xidhaan lenses-contact lenses multifocal, wali way xooga saari karaan, sidaas darteed waxay la mid tahay in la siiyo muraayadaha indhaha ee caadiga ah.Way ka sahlan yihiin inay ku habboonaadaan dadka waaweyn. "
Daraasadda, oo loo yaqaan BLINK (Bifocal lenses for Children with Myopia), ayaa lagu daabacay maanta (Ogosto 11) gudaha JAMA.
In myopia, ama aragtida u dhow, isha waxay u koraan qaab dheer oo aan la isku xirin, sababta oo ah taas oo weli ah qarsoodi. Daraasadaha xayawaanka ayaa saynisyahannada siisay suurtagalnimada muraayadaha indhaha si ay u xakameeyaan koritaanka indhaha iyagoo isticmaalaya qaybta akhriska ee lens-xiriirka multifocal. in xooga la saaro iftiinka hore ee retina - lakabka nudaha xasaasiga ah ee dhabarka isha - si loo yareeyo koritaanka isha.
"Lenss-yadan kala duwan ee lenses-ku waxay ku dhaqaaqaan isha waxayna bixiyaan feejignaan dheeraad ah xagga hore ee retina marka loo eego muraayadaha," ayuu yiri Waring, oo sidoo kale ah maamulaha cilmi-baarista ee Dugsiga Optometry ee Gobolka Ohio. indhaha, sababtoo ah myopia waxaa keena indhuhu si aad ah u koraan."
Daraasaddan iyo kuwa kaleba waxay horeyba u sameeyeen horumar xagga daaweynta carruurta miyir-qabka ah, Waring ayaa yiri. Ikhtiyaarada waxaa ka mid ah lenses contact lenses multifocal, lenses contact lenses in reforming cornea inta lagu guda jiro hurdada (oo loo yaqaan orthokeratology), nooc gaar ah oo dhibcaha indhaha ah oo loo yaqaan atropine, iyo muraayadaha gaarka ah.
Myopia ma aha oo kaliya dhib. Aragtida yar waxay wanaajisaa fursadaha qalliinka laysarka si uu si guul leh u saxo aragga oo aan u naafoobin marka aanad xidhin aligners, sida markaad toosto subaxdii.
Myopia sidoo kale waa wax caadi ah, oo saameeya saddex-meelood meel dadka qaangaarka ah ee Maraykanka, waxayna noqotaa mid aad u badan - sida bulshada cilmi-nafsiga ah ayaa aaminsan in carruurtu ay ku qaataan wakhti ka yar dibadda marka loo eego wakhtiyadii hore. Myopia waxay u egtahay inay bilaabato inta u dhaxaysa da'da 8. iyo 10 oo u gudubta ilaa da'da 18.
Walline waxay daraasad ku samaynaysay isticmaalka muraayadaha indhaha ee carruurta sannado badan, waxayna ogaatay in marka laga soo tago inay u fiican yihiin aragga, muraayadaha indhaha ay sidoo kale hagaajin karaan isku-kalsoonaanta carruurta.
"Ilmaha ugu yar ee maskaxdayda ee aan bartay waxa uu ahaa toddoba jir," ayuu yidhi." Dhammaan 25-jirka ma u dulqaadan karaan muraayadaha indhaha.Qiyaastii kala badh carruurta 7-jirka ah waxay si macquul ah ugu habboonaan karaan muraayadaha indhaha, iyo ku dhawaad dhammaan carruurta 8-jirka ah way awoodaan."
Muraayadaha Xidhiidhka Bifocal
Tijaabadan, oo lagu qabtay Jaamacadda Ohio State University iyo Jaamacadda Houston, carruurta da'doodu u dhaxayso 7-11 ayaa si aan kala sooc lahayn loogu qoondeeyay mid ka mid ah saddexda kooxood ee xidhashada muraayadaha indhaha: monovision ama warqado badan oo leh koror 1.50 diopter ah ee akhriska dhexe ama Sare ku dar 2.50 diopters. Diopter waa unugga cabbiraadda awoodda indhaha ee loo baahan yahay si loo saxo aragga.
Koox ahaan, kaqeybgalayaashu waxay lahaayeen celcelis ahaan diopter -2.39 diopter bilawga daraasadda. Saddex sano ka dib, carruurta soo xirtay lenses qiimo sare leh waxay lahaayeen horumar yar oo myopia iyo koritaanka indhaha oo yar. Celcelis ahaan, carruurta xirtay-sare-ku dar. Bifocals waxay koreen indhahooda 0.23 mm wax ka yar saddex sano marka loo eego kuwa xidhan aragga kaliya.
Cilmi-baadhayaashu waxay ogaadeen in hoos u dhigista korriinka indhaha loo baahan yahay in lagu dheellitiro khatar kasta oo la xiriirta u suurtagelinta carruurta inay aqbalaan xirfadaha akhriska xooggan muddo dheer ka hor intaan carruurtu u baahneyn heerkan sixitaanka. Waxaa jiray farqi laba xaraf ah oo u dhexeeya muraayadaha monofocal iyo kuwa xiran lens multifocal marka tijaabinta awoodda ay u leeyihiin inay akhriyaan xarfaha cawlan ee asalka cad.
"Waxay ku saabsan tahay in la helo meel macaan," ayuu yiri Waring." Dhab ahaantii, waxaan ogaanay in xitaa awoodda sare ee dheeraadka ah aysan si weyn u dhimin aragooda, oo hubaal maahan qaab kiliinikada ku habboon."
Kooxda cilmi-baaristu waxay sii wadeen inay raacaan isla ka qaybgalayaasha, iyaga oo ku daaweynaya lenses-bifocal lenses-sare laba sano ka hor intaysan u beddelin dhammaan muraayadaha indhaha ee hal-aragga ah.
"Su'aashu waxay tahay, waxaan hoos u dhignaa koritaanka indhaha, laakiin maxaa dhacaya markaan ka saarno daaweynta?Miyay ku noqdaan meeshii markii hore loogu sii diyaariyay?Waarta saamaynta daawaynta ayaa ah waxa aanu baadh doonno,” Walline ayaa yidhi..
Cilmi-baarista waxaa maalgeliyay Machadka Qaranka ee Indhaha, qayb ka mid ah Machadyada Caafimaadka Qaranka, oo ay taageerto Bausch + Lomb, kaas oo bixiya xalalka muraayadaha indhaha.
Waqtiga boostada: Jul-17-2022
