Tus qauv ntawm presbyopia yuav maj mam tshwm sim tom qab hnub nyoog 40, tab sis nyob rau hauv xyoo tas los no, vim qhov muag tsis pom kev ntawm cov neeg niaj hnub no, ntau thiab ntau tus neeg muaj presbyopia qhia ua ntej.Yog li ntawd, qhov kev thov raubifocalsthiabkev vam meejkuj tau nce.Qhov twg ntawm ob lo ntsiab muag no yog qhov nyiam tshaj plaws rau cov neeg uas muaj myopia thiab presbyopia?
1. Bifocals
Bifocals muaj ob degrees.Feem ntau, sab sauv yog siv los saib thaj chaw deb, xws li tsav tsheb thiab taug kev;qhov qis dua yog siv los saib qhov ze, xws li nyeem phau ntawv, ua si nrog lub xov tooj ntawm tes, thiab lwm yam. Thaum lub lens bifocal thawj zaug tawm, lawv tau raug suav hais tias yog txoj moo zoo rau cov neeg uas pom kev luv luv thiab presbyopia, tshem tawm cov teeb meem ntawm kev tshem tawm thiab hnav tsis tu ncua, tab sis raws li tib neeg siv lawv, lawv pom tias bifocal lo ntsiab muag kuj muaj ntau qhov tsis zoo.
Ua ntej tshaj plaws, qhov tsis zoo tshaj plaws ntawm hom lo ntsiab muag yog tias tsuas muaj ob qib, thiab tsis muaj kev hloov pauv ntawm kev saib deb thiab ze, yog li nws yooj yim los tsim qhov tshwm sim prism, uas feem ntau hu ua "dhia duab".Thiab nws yooj yim poob thaum hnav, uas tsis tshua muaj kev nyab xeeb rau cov neeg hnav, tshwj xeeb tshaj yog cov neeg laus hnav.
Qhov thib ob, lwm qhov tsis zoo ntawm cov lo ntsiab muag bifocal yog tias yog tias koj ua tib zoo saib ntawm cov lo ntsiab muag bifocal, koj tuaj yeem pom cov kab sib faib meej ntawm ob qib ntawm lub lens.Yog li nyob rau hauv cov nqe lus ntawm aesthetics, nws yuav tsis zoo nkauj heev.Hais txog kev ceev ntiag tug, vim muaj cov yam ntxwv pom tseeb ntawm cov lo ntsiab muag bifocal, nws yuav ua tau txawv txawv rau cov hluas hnav.
Bifocal lo ntsiab muag tshem tawm cov teeb meem ntawm kev tshem tawm thiab hnav ntawm myopia thiab presbyopia.Lawv tuaj yeem pom meej nyob rau hauv qhov kev ncua deb thiab nyob ze, thiab tus nqi kuj pheej yig;tab sis thaj tsam nruab nrab ntawm qhov chaw yuav pom qhov muag tsis pom, thiab kev nyab xeeb thiab kev zoo nkauj tsis zoo.
2. Kev vam meej
Cov lo ntsiab muag zoo muaj ntau lub ntsiab lus focal, yog li zoo li bifocal lo ntsiab muag, lawv tsim nyog rau cov neeg uas pom luv luv thiab presbyopia.Sab saum toj ntawm lub lens yog siv los saib qhov deb, thiab qis dua yog siv los pom ze.Tab sis tsis zoo li bifocal lo ntsiab muag, muaj ib qho kev hloov chaw ("kev loj hlob") nyob rau hauv nruab nrab ntawm lub lens kev loj hlob, uas tso cai rau peb ib tug adaptive degree cheeb tsam kom pom qhov deb ntawm deb mus rau ze.Ntxiv rau sab saum toj, nruab nrab, thiab hauv qab, kuj tseem muaj qhov muag tsis pom ntawm ob sab ntawm lub lens.Qhov chaw no tsis tuaj yeem pom cov khoom, tab sis nws kuj me me, yog li nws yeej tsis cuam tshuam rau kev siv.
Nyob rau hauv cov nqe lus ntawm cov tsos, cov lo ntsiab muag kev loj hlob yog qhov tseem ceeb indistinguishable los ntawm ib qho kev pom kev tsom iav, thiab cov kab sib faib yuav tsis yooj yim pom, vim hais tias tsuas yog cov neeg hnav ntawm cov lo ntsiab muag loj tuaj yeem hnov qhov txawv ntawm lub hwj chim hauv ntau qhov chaw.Nws yog qhov tsim nyog rau cov neeg uas xav tiv thaiv lawv tus kheej.Hais txog kev ua haujlwm, nws tuaj yeem ua tau raws li qhov xav tau ntawm kev pom deb, nruab nrab thiab ze.Nws yog qhov yooj yim dua los saib ntawm qhov nruab nrab, muaj thaj tsam hloov pauv, thiab lub zeem muag yuav pom tseeb dua, yog li ntawm kev siv cov nyhuv, kev nce qib kuj zoo dua li bifocals.
Post lub sij hawm: Jun-30-2023