Tom qab 40 xyoo, cov poj niam feem ntau tsim muaj hnub nyoog ntev farsightedness los yog presbyopia . Tus kab mob no yog tus cwj pwm tsis zoo ntawm lub lens ntawm lub qhov muag, vim tias nws poob nws lub peev xwm los hloov nws cov duab thiab muab lub zeem muag meej rau txhua qhov chaw nyob. Thaum siv tsom iav, koj yuav tsum tau ob peb khub, piv txwv, nyeem ntawv, ua txhua hnub, ua haujlwm hauv lub computer.
Multifocal contact lenses yog qhov zoo tshaj plaws rau lwm qhov muag qhov tsom iav qhov muag. Lawv npaj rau hauv txoj kev zoo li tias ib khawm lo ntsiab muag tau tso cai rau koj pom cov khoom uas muaj nyob rau hauv ntau qhov chaw. Nyob ntawm cov kev xav tau, muaj ntau ntau hom kev hloov kho.
Yuav ua li cas xaiv ntau qhov chaw sib tiv tauj cov lenses?
Koj tuaj yeem yuav cov lo ntsiab muag kom haum rau kev kho mob presbyopia tom qab sib tham nrog tus kws kho mob. Ntawm qhov kev txais tos, tus kws kho mob yuav txiav txim seb muaj pes tsawg leeg kho qhov chaw muaj yuav tsum ua kom pom tseeb ntawm cov khoom tsis zoo.
Kev xaiv ntawm kev sib txuam ntawm ntau qhov chaw sib txuas lus yog ua tiav ntawm cov nram qab no:
- Bifocal. Qhov tsom iav kom tsis muaj qhov sib txawv muaj 2 iav optical, nyob rau sab qis - rau qhov pom meej nyob ze, hauv cheeb tsam sab nraud - rau kev tsom rau cov khoom nyob deb.
- Concentric. Nyob rau hauv xws li accessories, 2-3 kho thaj chaw muaj thaj tsam ncig ncig ntawm qhov chaw mus rau lub periphery.
- Aspherical. Cov lo ntsiab muag no yog qhov ua tau zoo tshaj plaws thiab hnyav. Rau qhov pom kev ze, qhov chaw seem kho qhov muag yog npaj. Los ntawm nws mus rau cov ntug ntawm lub cuab yeej, lub zog qis qis nws txawv maj, uas ua rau nws pom tseeb tsis pom nyob rau hauv lub deb thiab nyob ze, tab sis kuj nyob rau nrab ncua.
Nws tsis yooj yim los xaiv qhov kho qhov muag txhais tau hais tias, raws li lawv muaj ntau hom - kev hloov, thiab hloov ib hnub ntau tshaj qhov kev sib txuas lus. Tsis tas li ntawd, qhov nyuaj ntawm cov ntaub ntawv tseem ceeb, piv txwv li, muaj cov tshuaj silicone-hydrogel, nruj, thiab cov kua phom hnyav.
Qhov zoo tshaj plaws multifocal hu rau lo ntsiab muag
Qhov lenses pom zoo ntawm hom no yuav tsum tau muaj cov pa roj tau siv los pub dawb rau cov pa oxygen rau lub qhov muag, thiab tseem muaj cov ntsiab lus ntawm cov av qis kom tsis txhob muaj kev ntxhov, khaus thiab lacrimation .
Cov npe nram qab no muaj ntau hom ntsiab muag lo ntsiab muag ua tau raws li teev tseg:
- CIBA Lub Zeem Muag Alcon Cua Optix Multifocal;
- Bausch + Lomb PureVision2 Rau Presbyopia;
- Sauflon Clariti Multifocal;
- Bausch + Lomb Soflens Multi-Focal;
- CooperVision Biofinity Multifocal;
- Bausch + Lomb PureVision Multi-Focal;
- Mark'ennovy Xtensa Multifocal;
- CooperVision Rhythmic UV Multifocal.
Cov npe saum toj-hais ntaus npe no yog npaj rau kev hnav ntev nrog ib qhov kev hloov chaw. Lawv feem ntau yog tsim los ntawm cov khoom siv phom coos, muaj peev xwm ceev cov dej thiab cov yeeb yaj kiab hauv qhov muag, cia cov pa oxygen.
Yog tias koj xav tau tuaj nqa cov khoom ib hnub, koj yuav tsum tau them rau cov kev sib txuas lus ntawm ntau hom kev sib tham ntawm Clarified 1 Hnub Multifocal los ntawm Sauflon thiab Procipt 1 Hnub Multifocal los ntawm CooperVision. Kuj zoo ntawm Alcon Dailies AquaComfort Plus Multifocal, uas yog tsim los ntawm CIBA Vision.
Txhua pob ntawv muaj 30 leeg ntawm lo ntsiab muag coj los hloov txhua hnub. Qhov zoo ntawm hom kev kho qhov muag tsis pom kev yog qhov siab tshaj plaws. Tsis tas li ntawd, cov npe ntawm cov lenses multifocal muaj nplua wettability ntawm qhov chaw, uas tiv thaiv lub qhov muag los ntawm ziab tawm.