Rigid gas permeable contact lenses: tshuaj xyuas, tsim khoom. Rigid Contact Lens Care: Cov Tshuaj Txhua Hnub rau Rigid Gas Permeable Contact Lenses

Cov txheej txheem:

Rigid gas permeable contact lenses: tshuaj xyuas, tsim khoom. Rigid Contact Lens Care: Cov Tshuaj Txhua Hnub rau Rigid Gas Permeable Contact Lenses
Rigid gas permeable contact lenses: tshuaj xyuas, tsim khoom. Rigid Contact Lens Care: Cov Tshuaj Txhua Hnub rau Rigid Gas Permeable Contact Lenses

Video: Rigid gas permeable contact lenses: tshuaj xyuas, tsim khoom. Rigid Contact Lens Care: Cov Tshuaj Txhua Hnub rau Rigid Gas Permeable Contact Lenses

Video: Rigid gas permeable contact lenses: tshuaj xyuas, tsim khoom. Rigid Contact Lens Care: Cov Tshuaj Txhua Hnub rau Rigid Gas Permeable Contact Lenses
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Hnub no, muaj ntau txoj hauv kev los kho qhov muag. Feem ntau, cov tshuaj tiv thaiv yog siv los txhim kho nws cov ntse thiab tshem tawm lwm yam teeb meem. Nyob ntawm cov khoom siv, cov khoom muag muag thiab tawv roj permeable hu rau lo ntsiab muag yog qhov txawv. Tau kawg, thawj hom feem ntau siv, tab sis tom kawg muaj ntau yam zoo.

Rigid gas permeable contact lo ntsiab muag
Rigid gas permeable contact lo ntsiab muag

Cov khoom siv lo ntsiab muag tawv

Cov lo ntsiab muag tawv tau nthuav dav thaum kawg ntawm lub xyoo pua nees nkaum. Tom qab ntawd cov khoom tseem ceeb rau lawv cov khoom siv yog polymethyl methacrylate. Lub lens nws tus kheej kuj me me. Qhov tsis zoo ntawm cov lo ntsiab muag yog qhov tsis muaj kev sib pauv roj. Kev nkag mus rau cov pa oxygen mus rau lub pob txha tsuas yog ua los ntawm kev txav mus los thiab qhov me me ntawm cov cuab yeej kho kom raug. Txawm li cas los xij, niaj hnub no ntau duaniaj hnub thiab cov ntaub ntawv zoo. Rigid gas permeable contact lenses yog tsim los ntawm fluoro-silicone compounds. Vim qhov no, lub lenses muaj cov pa oxygen permeability zoo. Nws yog ib qho tsim nyog sau cia tias lawv xis nyob heev, lawv tsim ib tus zuj zus, lawv tsim kom haum rau tus neeg mob tshwj xeeb.

Cov Lus Qhia rau Rigid Lenses

Cov tshuaj tiv thaiv mos muag muaj kev txwv nyob rau hauv thaj tsam ntawm lub zog kho qhov muag. Feem ntau lawv tau muab tshuaj rau myopia txog -12 diopters, myopia tsis siab tshaj 8 diopters. Ib qho kev muaj zog ntawm myopia yuav tsum tau kho tshwj xeeb. Cov lo ntsiab muag muag nrog lub zog kho qhov muag siab yuav muaj qhov tuab loj hauv qhov no. Qhov no, nyob rau hauv lem, ua rau muaj kev pheej hmoo ntawm cov teeb meem (ib tug nruj haum yuav ua rau hypoxia ntawm lub qhov muag). Koj tuaj yeem siv cov tsom iav, tab sis niaj hnub no cov kws tshaj lij muab cov tshuaj tiv thaiv roj-permeable niaj hnub. Lawv muaj ntau yam ntawm refraction - los ntawm -25 diopters mus rau +25 diopters. Kev siv cov khoom siv niaj hnub ua kom muaj cov pa oxygen txaus rau lub qhov muag. Nyob rau tib lub sijhawm, qhov tuab ntawm cov lo ntsiab muag tsis txawv ntau los ntawm cov khoom sib xws ntawm cov khoom muag muag rau kev kho qhov muag.

Rigid gas permeable contact lo ntsiab muag. Kev tshuaj xyuas
Rigid gas permeable contact lo ntsiab muag. Kev tshuaj xyuas

Hard lens tsim

Cov lo ntsiab muag niaj hnub nruj muaj qhov chaw kho qhov muag, uas nyob hauv nruab nrab ntawm cov khoom. Nws txoj kab uas hla tsis tshaj 8 mm. Ua tsaug rau thaj tsam zawv zawg, uas muaj cov qauv tshwj xeeb, lub lens yog ruaj khov rau ntawm lub qhov muag. Qhov tsawg tshaj plaws qhov ntev yogntug cheeb tsam. Nws yog nws uas yog lub luag haujlwm rau kev hnav zoo ntawm cov khoom, ua kom muaj kev sib pauv ntawm cov kua muag hauv qab lub lens.

Qhov zoo ntawm cov lo ntsiab muag no

Ntau tus neeg mob nco ntsoov tias cov roj ntsha tsis zoo permeable rigid lo ntsiab muag tsis tshua muaj kev deformation, creasing. Vim lub fact tias lawv txoj kab uas hla yog me ntsis me dua li ntawm cov mos mos lo ntsiab muag, xws li cov khoom tawm ntawm peripheral cheeb tsam ntawm lub cornea qhib. Qhov no, nyob rau hauv lem, tsis cuam tshuam cov txheej txheem ntawm kev sib pauv kua muag. Lawv kuj tseem tiv taus cov protein deposits, yog li lub sij hawm ntawm kev nyab xeeb kev lag luam nce. Txij li cov muaj pes tsawg leeg tsis muaj dej tsis muaj dej, cov lo ntsiab muag tawv tsis tuaj yeem qhuav tawm, tus neeg mob tsis tas yuav siv cov dej noo tshwj xeeb. Nws tseem yog ib qho tseem ceeb uas yuav tsum nco ntsoov lawv cov txiaj ntsig zoo: tsuas yog qhov kev hloov pauv ntawm qhov muag pom kev ua haujlwm ua qhov qhia txog kev hloov pauv. Rigid contact lo ntsiab muag kuj tau qhia rau astigmatism. Kev tshuaj xyuas cov neeg mob qhia tias kev kho nrog cov lo ntsiab muag muag hauv qhov no yog qhov nyuaj heev, qhov kev xaiv tsuas yog siv cov khoom siv tawv. Kev kho orthokeratology kuj yog dav. Nws koom nrog kev siv cov lo ntsiab muag tawv tsuas yog thaum hmo ntuj.

Rigid contact lenses. Kev tshuaj xyuas
Rigid contact lenses. Kev tshuaj xyuas

Orthokeratology. Dab tsi yog qhov tseem ceeb ntawm cov txheej txheem

hom kev kho qhov muag no tso cai rau koj tswj nws qhov ntse thaum nruab hnub, tab sis hmo ntuj koj yuav tsum hnav lo ntsiab muag tshwj xeeb. Thaum pw tsaug zog, lub cornea ntawm lub qhov muag hloov, nws qhov chaw kho qhov muag yuav flatter. Daim ntawv no yog khaws cia rau hnub tom ntej. Raws li txoj cai, cov txiaj ntsig ntawm kev kho zoo li no tuaj yeem khaws ciaob hnub. Hmo ntuj lo ntsiab muag yog qhov zoo rau cov menyuam yaus, cov neeg mob uas muaj kev loj hlob ntawm myopia, nyob rau hauv lub xub ntiag ntawm contraindications rau kev ua haujlwm los kho qhov muag. Tsis tas li ntawd, txoj kev no feem ntau xaiv los ntawm cov neeg ntawm qee yam haujlwm: ncaws pob, tub rog, tsim, thiab lwm yam. Contraindications rau kev kho orthokeratological yog cov kab mob ntawm lub qhov muag, daim tawv muag, txhua yam txheej txheem inflammatory, "qhuav qhov muag" syndrome.

Rigid contact lens cleaner
Rigid contact lens cleaner

Qhov tsis zoo ntawm kev siv lo ntsiab muag tawv

Ntxiv rau qhov zoo li saum toj no, cov lo ntsiab muag tawv muaj lawv qhov tsis zoo. Ua ntej ntawm tag nrho cov, ib lub sij hawm ntawm adaptation (kwv yees li ib lub lim tiam) yog tsim nyog. Tom qab tau siv los, qhov tsis xis nyob yuav ploj mus, tab sis txawm tias luv luv hauv kev hnav yuav tsum muaj kev hloov pauv tshiab rau cov khoom. Muaj qee qhov degree ntawm pob txha deformation yog tias siv cov tshuaj tiv thaiv roj permeable. Cov neeg mob cov lus tawm tswv yim qhia tias kev siv cov tsom iav tom qab xws li lo ntsiab muag tsis tuaj yeem ua rau cov txiaj ntsig xav tau: daim duab ua qhov muag plooj, qhov pom tseeb qis dua. Txawm li cas los xij, qhov no yog qhov cuam tshuam ib ntus. Tom qab kev kho ntawm lub pob txha, koj tuaj yeem siv cov iav tsom iav yam tsis muaj qhov tsis pom kev zoo. Tsis tas li ntawd, cov txheej txheem ntawm kev xaiv cov khoom yog ntev heev, lawv cov nqi pib tseem yuav yog qhov kev txiav txim siab ntau dua li cov lo ntsiab muag muag.

Kev tsim cov khoom siv tawv tawv
Kev tsim cov khoom siv tawv tawv

Yuav ua li cas xaiv cov roj permeable lo ntsiab muag zoo

Yuav kom xaiv cov lo ntsiab muag kom raug, ua ntej ntawm tag nrho cov, koj yuav tsum hu rau tus kws tshaj lij. Nws txiav txim siab qhov muag pom kevqhov siab tshaj plaws ntawm kev kho. Nrog kev pab los ntawm cov cuab yeej tshwj xeeb, tus kws kho qhov muag ntsuas qhov tsim nyog ntawm tus neeg mob lub cornea. Tom ntej no yog sim ntawm ob peb khub. Tag nrho cov manipulations yog tsim nyog rau lub zoo meej lens haum. Kev tsim cov lo ntsiab muag tawv tawv yog ua tiav ib tus zuj zus, suav nrog ntau dua 20 qhov ntawm qhov muag. Tus kws tsim qauv tsim cov qauv tsim (qhov chaw kho qhov muag, thaj tsam plam, ntug cheeb tsam). Ntxiv mus, ntawm lub tshuab tshwj xeeb, cov khoom yog machined nyob rau hauv tag nrho raws li qhov layout. Lub tuam txhab nto moo tshaj plaws hauv cheeb tsam no yog German tuam txhab Wohlk. Cov chaw tsim khoom no muab cov khoom lag luam zoo. Raws li txoj cai, tom qab 14 hnub koj tuaj yeem tau txais cov lo ntsiab muag npaj tau.

Kev tu lub ntsej muag tawv tawv
Kev tu lub ntsej muag tawv tawv

Kev saib xyuas txhua hnub rau cov lo ntsiab muag nyuaj

Ua ntej tshaj, txhua lub lo ntsiab muag yuav tsum muaj kev nyiam huv ntawm tus kheej. Ob txhais tes yuav tsum tau ntxuav nrog xab npum thiab dej ua ntej muab los yog tshem tawm. Nws yog qhov zoo tshaj plaws los so lawv nrog waffle phuam kom tsis txhob tau txais ntau yam villi ntawm lub lens. Cov thawv ntim khoom yuav tsum tau ua kom huv si. Muaj cov cai tshwj xeeb rau cov poj niam. Kev pleev yuav tsum tsuas yog siv tom qab hnav lub lens. Raws li, thiab tshem tawm nws tom qab tshem cov khoom ntawm lub qhov muag. Ib lub tshuab ntxhua khaub ncaws txhua hnub rau cov roj ntsha permeable tiv thaiv cov lo ntsiab muag tseem xav tau. Nrog nws cov kev pab, impurities, kua lacrimal raug tshem tawm. Ib zaug ib lub lim tiam, kev ntxuav kom tob dua yog nqa tawm. Nws yog ib nqi sau cia hais tias nws yog tsis yooj yim sua rau rub lub lo ntsiab muag kom tsis txhob ua txhaum lub optical zog. Txog hnub timIb tug dav siv multifunctional nqus tsev vacuum rau tawv tawv lo ntsiab muag. Nws tso cai rau koj kom tshem tau cov protein deposits zoo (piv txwv li, Boston Simplus tov), tsis tas yuav tsum tau ntxiv enzymatic purification. Nws kuj zoo kawg nkaus tua kab mob thiab ua kom lub ntsej muag muag. Thaum lub sij hawm, cov khoom yuav nyuaj dua los ntxuav. Hauv qhov no, cov lo ntsiab muag tawv tuaj yeem polished hauv chav kuaj tshwj xeeb.

Lub tshuab ntxhua khaub ncaws txhua hnub rau cov roj ntsha permeable tiv thaiv kab mob
Lub tshuab ntxhua khaub ncaws txhua hnub rau cov roj ntsha permeable tiv thaiv kab mob

Tshwj xeeb rau cov neeg siv lub lens tawv

Hnav lo ntsiab muag tawv ua rau qee lub luag haujlwm rau tus neeg mob. Kev mus ntsib kws kho mob ophthalmologist yuav tsum tsis tu ncua. Qhov no yuav ua rau tus kws kho mob tshwj xeeb los ntsuas qhov mob ntawm lub qhov muag. Ntawm qhov kev hloov me ntsis ntawm qhov muag, koj yuav tsum nrhiav kev qhia ntawm tus kws tshaj lij. Kev kho mob raws sij hawm yuav zam kom tsis txhob muaj mob xws li pob txha edema, microbial keratitis, conjunctivitis, corneal ulcer, thiab kev tsis haum tshuaj. Rigid gas permeable contact lo ntsiab muag yog ib qho kev xaiv zoo tshaj plaws rau kev kho qhov muag tsis pom kev hauv ntau qhov xwm txheej, tab sis lawv xav tau kev saib xyuas kom zoo thiab zoo.

Pom zoo: