Peb feem ntau hnov cov lus xws li pom kev 1.0, 0.8 thiab myopia 100 degrees, 200 degrees hauv peb lub neej txhua hnub, tab sis qhov tseeb, qhov pom kev 1.0 tsis txhais hais tias tsis muaj myopia, thiab qhov muag pom 0.8 tsis txhais hais tias 100 degrees ntawm myopia.
Kev sib raug zoo ntawm kev pom thiab myopia zoo li kev sib raug zoo ntawm qhov hnyav thiab cov qauv kev rog. Yog hais tias ib tug neeg hnyav 200 catties, nws tsis txhais hais tias nws yuav tsum rog. Peb kuj yuav tsum txiav txim raws li nws qhov siab - ib tug neeg siab ntawm 2 meters tsis rog ntawm 200 catties. , Tab sis yog hais tias ib tug neeg ntawm 1.5 meters yog 200 catties, nws yog heev rog.
Yog li ntawd, thaum peb saib peb lub qhov muag, peb kuj yuav tsum tau soj ntsuam nws nrog rau tus kheej yam. Piv txwv li, qhov pom kev pom ntawm 0.8 rau tus menyuam hnub nyoog 4 lossis 5 xyoos yog qhov qub vim tias tus menyuam muaj qee qhov tshwj xeeb ntawm kev pom deb. Cov neeg laus muaj myopia me me yog tias lawv lub zeem muag yog 0.8.
Qhov tseeb thiab tsis tseeb myopia
[True myopia] yog hais txog qhov yuam kev refractive uas tshwm sim thaum lub qhov muag ntev dhau lawm.
[Pseudo-myopia] Nws tuaj yeem hais tau tias yog ib hom "kev kho mob myopia", uas yog lub xeev ntawm lub qhov muag qaug zog, uas yog hais txog kev ua kom haum ntawm cov leeg ciliary tom qab siv lub qhov muag ntau dhau.
Nyob rau saum npoo, pseudo-myopia kuj blurs qhov kev ncua deb thiab pom meej nyob ze, tab sis tsis muaj kev hloov pauv diopter thaum lub sij hawm mydriatic refraction. Yog li ntawd yog vim li cas nws tsis meej ntawm qhov deb? Qhov no yog vim lub qhov muag feem ntau siv tsis raug, cov leeg ciliary txuas ntxiv kev cog lus thiab spasm, thiab lawv tsis tuaj yeem tau txais qhov seem uas lawv tsim nyog, thiab lub lens yuav thicker. Nyob rau hauv txoj kev no, lub teeb thaum uas tig mus nkag rau hauv lub qhov muag, thiab tom qab lub lens thickened yog flexed, lub tsom xam poob mus rau pem hauv ntej ntawm lub retina, thiab nws yog ntuj pom tej yam nyob deb.
False myopia yog txheeb ze rau qhov tseeb myopia. Nyob rau hauv qhov tseeb myopia, lub refractive system ntawm lub emmetropia yog nyob rau hauv ib tug zoo li qub, uas yog, tom qab cov kev hloov kho tau tso tawm, qhov deb point ntawm lub qhov muag yog nyob rau hauv ib tug txwv deb deb. Nyob rau hauv lwm yam lus, myopia yog vim congenital los yog tau txais yam uas ua rau lub anterior thiab posterior txoj kab uas hla ntawm lub qhov muag mus ntev. Thaum cov hluav taws xob sib txuas nkag mus rau lub qhov muag, lawv tsim ib qho chaw focal nyob rau hauv pem hauv ntej ntawm retina, ua rau pom qhov muag tsis pom kev. Thiab pseudo-myopia, nws yog ib feem ntawm kev hloov pauv thaum saib cov khoom nyob deb.
Yog tias cov theem pseudo-myopia tsis tau them nyiaj rau, nws yuav ntxiv mus rau qhov tseeb myopia. Pseudo-myopia yog tshwm sim los ntawm cov leeg ciliary over-regulating spasm thiab tsis tuaj yeem so. Ntev npaum li cov leeg ciliary tau so thiab lub lens rov qab los, cov tsos mob myopia yuav ploj mus; Qhov tseeb myopia yog tshwm sim los ntawm lub sij hawm ntev spasm ntawm cov leeg ciliary, uas ua rau lub pob muag, ua rau lub qhov muag axis kom elongate, thiab cov khoom nyob deb tsis tuaj yeem pom ntawm lub pob ntseg retina.
Myopia tiv thaiv thiab tswj cov cai
Qhov "Cov Lus Qhia Txog Kev Noj Qab Haus Huv rau Kev Tiv Thaiv thiab Kev Tswj Xyuas Myopia hauv Tsev Kawm Ntawv Cov Khoom Siv rau Cov Menyuam thiab Cov Hluas" raug tso tawm. Tus qauv tshiab no tau raug txiav txim tias yog tus qauv tsim nyog hauv lub tebchaws thiab yuav raug coj ua thaum Lub Peb Hlis 1, 2022.
Tus qauv tshiab no yuav suav nrog cov phau ntawv kawm, cov ntaub ntawv ntxiv, cov ntawv xov xwm kev kawm, cov ntawv ua haujlwm hauv tsev kawm ntawv, cov ntawv xeem, ntawv xov xwm, cov ntaub ntawv kawm rau cov menyuam yaus preschool, thiab cov teeb pom kev zoo hauv chav kawm, nyeem ntawv thiab sau cov ntawv ua tom tsev, thiab qhia ntau yam xov xwm rau cov menyuam yaus txog kev tiv thaiv myopia thiab tswj. . Cov khoom siv hauv tsev kawm ntawv rau cov tub ntxhais hluas yog tag nrho suav nrog hauv kev tswj hwm, uas tau teev tseg tias -
Cov cim uas siv nyob rau hauv qib 1 thiab thib ob ntawm cov tsev kawm ntawv theem pib yuav tsum tsis pub tsawg tshaj 3 lub cim, cov cim Suav yuav tsum yog cov ntawv qaij, thiab qhov chaw kab yuav tsum tsis pub tsawg tshaj 5.0mm.
Cov cim uas siv nyob rau qib 3 thiab qib 4 ntawm lub tsev kawm ntawv theem pib yuav tsum tsis pub tsawg tshaj 4 tus cim. Cov cim Suav feem ntau yog nyob rau hauv Kaiti thiab Songti, thiab maj mam hloov ntawm Kaiti mus rau Songti, thiab qhov chaw kab yuav tsum tsis txhob tsawg dua 4.0mm.
Cov cim siv nyob rau qib 5 txog rau qib cuaj thiab tsev kawm ntawv theem siab yuav tsum tsis txhob me dua tus me me 4th cim, cov cim Suav yuav tsum yog cov nkauj feem ntau, thiab qhov chaw kab yuav tsum tsis pub tsawg tshaj 3.0mm.
Cov lus ntxiv uas siv hauv cov ntsiab lus, sau ntawv, thiab lwm yam tuaj yeem raug txo kom tsim nyog nrog rau cov lus siv hauv cov ntawv tseem ceeb. Txawm li cas los xij, cov lus tsawg kawg uas siv hauv tsev kawm theem qis yuav tsum tsis pub tsawg dua 5 lo lus, thiab cov lus tsawg kawg uas siv hauv tsev kawm theem siab thiab tsev kawm theem siab yuav tsum tsis pub tsawg dua 5 lo lus.
Qhov loj me me ntawm cov menyuam kawm ntawv preschool cov phau ntawv yuav tsum tsis pub tsawg dua 3, thiab cov ntawv qaij yog qhov tseem ceeb. Cov cim ntxiv xws li catalogues, sau ntawv, pinyin, thiab lwm yam yuav tsum tsis pub tsawg tshaj 5th. Qhov chaw kab yuav tsum tsis pub tsawg tshaj 5.0mm.
Cov phau ntawv ua haujlwm yuav tsum tau luam tawm kom meej thiab tsis muaj qhov pom tseeb.
Cov ntawv xov xwm kev kawm yuav tsum tsis sib xws hauv cov xim number case thiab zoo ib yam hauv qhov tob; cov imprints yuav tsum meej, thiab yuav tsum tsis muaj slurred cim uas cuam tshuam rau kev paub; yuav tsum tsis muaj qhov pom tseeb watermarks.
Kev qhia ntau yam xov xwm yuav tsum tsis txhob pom qhov flicker perceptible, ua tau raws li cov cai tiv thaiv lub teeb xiav, thiab lub vijtsam ci yuav tsum tsis txhob loj dhau thaum siv.
Tsev neeg myopia tiv thaiv thiab tswj
Tsev neeg yog qhov chaw tseem ceeb rau cov menyuam yaus thiab cov tub ntxhais hluas nyob thiab kawm, thiab cov teeb pom kev hauv tsev thiab teeb pom kev zoo yog qhov tseem ceeb heev rau menyuam yaus thiab cov tub ntxhais hluas qhov muag huv si.
1. Muab lub rooj rau ntawm lub qhov rais kom lub axis ntev ntawm lub rooj yog perpendicular mus rau lub qhov rais. Lub teeb ntuj yuav tsum nkag los ntawm sab nraud ntawm txhais tes sau thaum nyeem ntawv thiab sau ntawv thaum nruab hnub.
2. Yog tias tsis muaj lub teeb txaus thaum nyeem ntawv thiab sau ntawv thaum nruab hnub, koj tuaj yeem tso lub teeb rau ntawm lub rooj rau kev pabcuam teeb pom kev zoo, thiab muab tso rau pem hauv ntej ntawm sab nraud ntawm tes sau ntawv.
3. Thaum nyeem ntawv thiab sau ntawv thaum hmo ntuj, siv lub teeb lub rooj thiab lub teeb hauv qab nthab hauv tib lub sijhawm, thiab tso lub teeb kom raug.
4. Qhov chaw teeb pom kev hauv tsev yuav tsum siv cov khoom siv teeb pom kev zoo peb lub teeb, thiab xim kub ntawm lub rooj teeb yuav tsum tsis pub tshaj 4000K.
5. Lub teeb liab qab yuav tsum tsis txhob siv rau lub teeb pom kev hauv tsev, uas yog, cov raj lossis qhov muag teev tsis tuaj yeem siv ncaj qha, tab sis cov raj lossis cov qij uas muaj lub teeb pom kev zoo yuav tsum tau siv los tiv thaiv lub qhov muag ntawm glare.
6. Tsis txhob tso cov iav los yog lwm yam khoom uas ua rau pom kev ntawm lub rooj.
Txawm hais tias yog vim li cas caj ces, qee tus neeg hais tias lub teeb xiav ntawm cov ntxaij vab tshaus hluav taws xob tuaj yeem ua rau lub qhov muag puas, tab sis qhov tseeb, lub teeb xiav yog nyob txhua qhov chaw, thiab peb tsis ua rau peb qhov muag tsis pom kev vim qhov no. Ntawm qhov tsis sib xws, nyob rau lub sijhawm tsis muaj cov khoom siv hluav taws xob, ntau tus neeg tseem raug kev txom nyem los ntawm myopia. Yog li ntawd, cov yam tseem ceeb uas ua rau muaj qhov nce ntawm myopia hauv cov tub ntxhais hluas yog qhov ze thiab siv lub qhov muag ntev.
Siv koj ob lub qhov muag kom raug thiab nco ntsoov "20-20-20" mis: Tom qab saib ib yam dab tsi rau 20 feeb, hloov koj lub siab mus rau ib qho khoom 20 feet (6 meters) deb, thiab tuav nws rau 20 vib nas this.
Post lub sij hawm: Jan-26-2022