Bifocal contact lenses haisisiri yemeso ekuchembera chete.Kuvana vemyopic vane makore 7, multifocal contact lenses nepamusoro-dose kuverenga kugona kunogona kuderedza zvakanyanya kufambira mberi kwemyopia, tsvakurudzo itsva yakawana.
Muchiyedzo chekiriniki chemakore matatu chevana vangangosvika mazana matatu, zvinyorwa zvebifocal contact lens zvine huremu hwepamusoro hwepamusoro hwekushanda hwakadzora kufambira mberi kwemyopia nezvikamu makumi mana nezvitatu kubva muzana zvichienzaniswa nekuona kamwe chete lenzi.
Kunyange zvazvo vanhu vakuru vakawanda vari mumakore ekuma40 vakatora nguva yekugadzirisa kune yavo yekutanga multifocal contact lens prescription, vana vari muchidzidzo avo vakashandisa zvakafanana zvinotengeswa zvemasoft contact lenses vakanga vasina matambudziko ekuona pasinei nekukwanisa kwavo kugadzirisa. Multifocal lenses yevarwere vemyopic inogadzirisa kure kure kuona uye "kuwedzera" kureba kwepadhuze kune basa riri pedyo rinodenha maziso ezera repakati.
Bifocal Contact Lenses
"Vakuru vanoda multifocal contact lens nekuti havachakwanisa kuisa pfungwa pakuverenga," akadaro Jeffrey Walling, purofesa weOptometry paOhio State University uye munyori anotungamira wechidzidzo ichi.
“Kunyangwe vana vakapfeka ma-multifocal contact lens, vanogona kuramba vakatarisa, saka zvakangofanana nekuvapa macontact lens nguva dzose.Vari nyore kupinda mauri kupfuura vanhu vakuru.”
Chidzidzo ichi, chinonzi BLINK (Bifocal Lenses for Children with Myopia), chakabudiswa nhasi (August 11) muJAMA.
Mune myopia, kana kuona pedyo, ziso rinokura kuva chimiro chakareba nenzira isina kurongeka, chikonzero chacho chinoramba chiri chakavanzika.Zvidzidzo zvemhuka zvakapa masayendisiti mukana wekuonana lenses kudzora kukura kweziso nekushandisa chikamu chekuverenga che multifocal contact lens. kutarisa chimwe chiedza pamberi pe retina - musara wechiedza-sensitive tissue kuseri kweziso - kuderedza kukura kweziso.
"Malensi akawanda aya anofamba neziso uye anopa kutarisisa kumberi kweretina kupfuura zvinoita magirazi," akadaro Waring, anove dhipatimendi wekutsvaga muOhio State's School of Optometry. yemaziso, nokuti myopia inokonzerwa nekukura kwemaziso kwenguva refu. "
Ichi chidzidzo uye vamwe vakatoita kufambira mberi mukurapa kwevana vemyopic, Waring akati.Zvisarudzo zvinosanganisira multifocal contact lenses, contact lens iyo inogadzirisa cornea panguva yehope (inonzi orthokeratology), rudzi rwakasiyana rwemadonhwe eziso anonzi atropine, uye magirazi anokosha.
Myopia haisi kungovhiringidza chete.Myopia inowedzera njodzi yecataract, retinal detachment, glaucoma, uye myopic macular degeneration. Zvese izvi zvinogona kukonzera kurasikirwa kwekuona, kunyangwe nemagirazi kana macontact lenses.Kunewo mhando-ye-hupenyu zvinhu - kusaona padhuze kunonatsiridza mikana yekuvhiyiwa kwelaser kuti ubudirire kururamisa chiono uye kusaremadza kana usina kupfeka maaligner, sepaunomuka mangwanani.
Myopia yakajairika zvakare, inobata chikamu chimwe muzvitatu chevakuru muUS, uye iri kuwedzera kuwanda - sezvo vesainzi vanofunga kuti vana vari kupedza nguva shoma vari panze kupfuura zvavaimboita kare.Myopia inowanzotanga pakati pemakore masere uye 10 uye kufambira mberi kusvika pazera remakore 18.
Walline anga achidzidza nezvekushandiswa kwevana macontact lens kwemakore akawanda uye akaona kuti kunze kwekunakira kuona, macontact lens anogonawo kuvandudza kuzviremekedza kwevana.
“Gotwe randakambodzidza raiva nemakore manomwe,” akadaro.” Havasi vose vane makore 25 okukura vanogona kushivirira macontact lens.Inenge hafu yevana vane makore manomwe vanogona kukwana mumaziso lenzi, uye vanenge vese vane makore masere vanogona.”
Bifocal Contact Lenses
Muchiyedzo ichi, chakaitwa paThe Ohio State University uye University of Houston, vana vemyopic vane makore 7-11 vakangoiswa kune rimwe remapoka matatu evanopfeka lens: monovision kana multifocal prescription ine 1.50 diopter kuwedzera mukuverenga kwepakati kana High wedzera 2.50 diopters.Diopter ndiyo chiyero chekuyera kwesimba remaziso rinodiwa kugadzirisa maonero.
Seboka, vatori vechikamu vaiva neavhareji ye diopters ye -2.39 diopters pakutanga kwekudzidza.Mushure memakore matatu, vana vaipfeka-high-value lenses vakanga vane zvishoma kufambira mberi kwemyopia uye zvishoma kukura kweziso.Paavhareji, vana vaipfeka-high-add bifocals akakura maziso avo ne 0.23 mm zvishoma pamakore matatu pane avo vaipfeka chiratidzo chimwe chete. Malenzi ane mwero haanonoke kukura kwemaziso kupfuura mamwe ekuona lenzi.
Vatsvakurudzi vakaona kuti kuderedzwa kwekukura kweziso kunoda kuenzana nenjodzi dzipi nedzipi dzine chokuita nekuita kuti vana vabvume unyanzvi hwokuverenga hwakasimba nguva refu vana vasati vada chiyero ichi chekugadzirisa.Paiva nemusiyano wemabhii maviri pakati pevanopfeka lens monofocal uye multifocal lens vanopfeka kuyedza kugona kwavo kuverenga mavara egrey pane chena kumashure.
"Ndezvekutsvaga nzvimbo inotapira," akadaro Waring.
Boka rekutsvagisa rakaramba richitevera vatori vechikamu vakafanana, richivabata neakakwira-attach bifocal lenses kwemakore maviri risati raachinja ese kune imwe-yekuona kuonana lenzi.
“Mubvunzo ndewekuti tinononokesa kukura kwemaziso, asi chii chinoitika kana tikaabvisa mukurapa?Vanodzokera here kwavakange vagara vakarongwa kare?Kusimba kwemaitiro ekurapa ndiko kwatichaongorora, ”akadaro Walline..
Tsvagiridzo iyi yakatsigirwa neNational Eye Institute, chikamu cheNational Institutes of Health, uye inotsigirwa naBausch + Lomb, iyo inopa ma lens mhinduro.
Nguva yekutumira: Jul-17-2022
