Cov neeg uas nyiam nyiam hloov lawv cov duab, thiab xyuam xim rau txawm tias cov lus ntxawg tshaj plaws hauv daim duab, feem ntau tuaj yeem tuaj lo lo xim. Cov khoom me me no cia koj los sis xav txog qhov ntxoov ntxoo ntawm qhov iris, kom muab nws ua qhov tsis zoo thiab txawv txawv vim muaj ntau yam qauv. Ntxiv mus, cov cuab yeej no siv tau rau kev kho qhov muag tsis pom kev .
Yuav ua li cas yog hu rau lo ntsiab muag?
Yuav kom nrhiav tau cov khoom zoo meej, nws yog ib qho tseem ceeb uas yuav tau ua tib zoo kawm lawv cov yeeb yam loj.
Ua ntej koj yuav tsum txiav txim siab cov khoom siv ntawm chaw ua khoom siv. Muaj ob pawg loj uas tau muab piav qhia lawm - tawv thiab xuab zeb xim lo ntsiab muag. Ntau tshaj 90% ntawm cov siv yeeb siv tshuaj yog ntawm hom kawg, lawv tau ua los ntawm hydrogel lossis silicone hydrogel . Hnov cov khoom uas tau los ntawm cov polymers tshwj xeeb, lawv pom zoo rau kev kho cov kab mob loj heev ntawm astigmatism thiab keratoconus.
Lub theem tom ntej ntawm kev xaiv lens yuav xaiv lawv cov xim thiab kev tuaj yeem. Muaj ntau ntau yam piav qhia los ntawm cov khoom siv:
- toning, translucent;
- overlapping lub ntuj tone ntawm iris;
- "Crazy" los yog ua kom muaj nuj nqis.
Thawj teev hom accessories yog tsim rau qhov muag pom kev. Nws tso cai rau koj ua kom lub ntuj ntxoov ntxoo ntawm iris tob thiab ntau dua, tab sis tsis txhob hloov nws radically.
Rau qhov muag uas muaj xim dub, xim xim lo ntsiab muag nrog ib qho xim txheej ntawm cov xim pleev xim. Lawv muab kev hloov ntawm cov duab ntxoov ntxoo ntawm iris mus rau lub suab nyiam.
Cov khoom siv thauj khoom siv feem ntau yog siv rau kev tsim cov duab rau ntawm kev yees duab tua, tog sib koom, cov nqi khoom noj khoom haus. Cov khoom siv xws li "vwm" yog qhov txawv ntawm ntau ntau yam ua kom poob siab thiab cov duab ntxoov ntxoo tsis zoo. Nrog lawv cov kev pab, koj tuaj yeem hloov xim ntawm sclera.
Lwm yam tseem ceeb hauv txoj kev xaiv ntawm kev sib txuas lus yog qhov ntau zaus ntawm lawv qhov kev hloov. Muaj ob peb lub sij hawm pom zoo rau hnav lawv:
- hnub;
- 1-2 lub lis piam;
- lub hli;
- mus txog rau lub hlis;
- 12 lub hlis (txwm).
Nws yog tsim nyog sau cia tias txawm tias qhov zoo tshaj plaws xim txhim kho qhov muag lo ntsiab muag tsis pom zoo kom siv tas li thiab tsis tu ncua. Ophthalmologists tau qhia kom hnav lawv tsis ntau dua 3-4 zaug ib lub lim tiam rau ob peb xuab moos, qhov zoo dua yog nruab hnub. Qhov tseeb yog tias yav tsaus ntuj thiab nrog rau cov menyuam kawm ntawv tsis loj txaus, qhov tseem ceeb, qhov feem ntau ntawm cov khoom siv tau nkag mus rau hauv qhov pom kev, uas yog pom los ntawm lub hlwb ua qhov muag pom teeb meem.
Cov xim tha xim nrog cov diopters
Feem ntau, cov khoom siv tshuaj kho yog ua rau hauv daim ntawv ntxoov ntxoo, vim tias lawv cov kab lus txhais tau pom tseeb tsis hais txog kev loj hlob lossis kev quab yuam ntawm tus tub ntxhais kawm thiab tsis cuam tshuam.
Lwm hom ntau hom xim lo ntsiab muag nrog cov diopters yog tsawg dua, tab sis lawv kuj yog cov xav tau. Cov kws kho mob tshwj xeeb tsis pom zoo siv cov khoom siv khuam khuam tshaj thiab cov khoom ua si ntawm ntau lub sij hawm thiab ntev heev. Lub sijhawm hnav yog 2-4 teev, 1-2 zaug hauv
Xim hu rau lo ntsiab muag tsis muaj cov diopters rau qhov muag
Yog tias tsis muaj teeb meem nrog kev tsis pom kev, tsis muaj kev txwv tshwj xeeb rau lub sijhawm siv kev siv cov ntaub qhwv ntsej muag, xim lossis cov menyuam kawm ntawv lub ntsiab ntom ntom.
Qhov tseem ceeb tshaj plaws yog kom yuav khoom zoo nrog cov pa roj thiab cov dej muaj dej txaus (li 70%). Qhov no pub dawb ntawm cov pa oxygen rau lub qhov muag ntawm lub qhov muag, nrog rau cov dej ntim ntawm qhov muag, uas tiv thaiv kev voos thiab qhov mob thaum lub sij hawm ntev ntawm kev siv lo ntsiab muag.