Lo ntsiab muag yog cov ntsiab lus tseem ceeb hauv kev kho qhov muag thiab muaj ntau hom nyob ntawm cov kev xav tau tshwj xeeb ntawm tus hnav. Ob ntawm cov lo ntsiab muag feem ntau yog siv lub zeem muag ib leeg thiab bifocal lo ntsiab muag. Thaum ob qho tib si pabcuam kom kho qhov tsis haum, lawv tsim rau cov laj thawj sib txawv thiab cov neeg sib txawv. Nkag siab txog qhov kev sib txawv ntawm cov lenses no yog qhov tseem ceeb rau kev xaiv paub, tshwj xeeb yog cov neeg lub zeem muag xav tau hloov pauv nrog lub hnub nyoog thiab kev xav tau. Hauv cov ncauj lus kom ntxaws ntxaws no, peb yuav tshawb txog qhov sib txawv ntawmLub Zeem Muag Ib LeegthiabBifocal lo ntsiab muag, suav nrog lawv daim ntawv thov, cov txiaj ntsig, thiab lawv tau teeb meem tshwj xeeb li cas.
1. Ib leeg lub zeem muag lo ntsiab muag: lawv yog dab tsi?
Ib qho chaw muag muag muag yog qhov yooj yim tshaj plaws thiab feem ntau siv hom lens hauv qhov muag pom. Raws li lub npe qhia, cov lo ntsiab muag no yog tsim los kho lub zeem muag ntawm ib qho ntev focal. Qhov no txhais tau tias lawv muaj tib lub zog kho tau hla tag nrho saum npoo ntawm lub lens, ua rau lawv haum rau ib hom kev ua tsis ncaj ncees lawm (myopia) lossis farsightedness (hyperopia).
Cov Nta Tseem Ceeb:
Lub zog niaj hnub:Lub lens muaj cov khoom siv sib npaug muaj zog thoob plaws, tsom teeb ntawm ib kis ntawm Retina. Qhov no tso cai rau lub zeem muag ntshiab ntawm ib qho deb.
Yooj yim ua haujlwm:Vim tias ib lub ntsiab muag muag pom tseeb rau ib qho ntawm qhov tsis pom kev, lawv tsis pom kev hauv kev tsim qauv thiab tsim khoom.
Rau myopia (ze ze):Cov uas muaj nyob ze tau pom cov teeb meem pom cov khoom nyob deb kom pom tseeb. Ib lub zeem muag lo ntsiab muag rau kev ua haujlwm ze ntawm kev ua haujlwm ntawm lub teeb ua ntej nws tsoo lub retina, pab cov khoom uas nyob deb tshwm ntsej muag.
Rau hyperopia (farsightedness):Cov tib neeg uas muaj kev tawm tsam fightsightedness kom pom cov khoom nyob ze. Ib qho kev pom zoo rau hyperopia tsom ntau rau lub retina, txhim kho ze lub zeem muag.
Siv cov xwm txheej:
Lub zeem muag pom kev zoo kuj tseem siv tau rau tib neeg nrog Astigmatism, ib qho xwm txheej uas lub qhov muag lub ntsej muag, ua rau distorted lub zeem muag ntawm txhua qhov chaw. Lub zeem muag tshwj xeeb hu ua lub ntsej muag tawv nqaij yog cov khoom siv kom raug cov astigmatism.
Qhov zoo ntawm ib qho kev siv lub zeem muag:
Yooj yim tsim thiab ntau lawm: Vim tias cov lenses no yog tsim los kho lub zeem muag ntawm tsuas yog ib qho deb, lawv tau yooj yim dua los ua cov lo ntsiab muag ntau.
Ntau yam ntawm cov ntawv thov:Ib qho kev pom zoo yog ntau yam yog ntau yam rau cov neeg ntawm txhua lub hnub nyoog uas muaj tsuas yog ib hom yuam kev.
Tus nqi qis dua: Feem ntau, lub zeem muag pom kev muaj peev xwm ntau tus nqi pheej yig dua li bifocal lossis leb lenses.
Yooj yim yoog:Vim tias tag nrho lub lens yog cov khaub ncaws zoo nyob rau hauv nws cov hwj huam kho, cov neeg hnav ntawm ib qho kev pom zoo rau lawv yooj yim yam tsis muaj kev tsis xis nyob lossis tsis xis nyob.
Muaj feem ntau tsom xam:Ib qho kev pom muaj tseeb tsuas yog ib hom teeb meem tsis pom (ze), uas yuav dhau los ua tsis txaus rau cov neeg uas muaj feem xyuam nrog ob lub zeem muag.
Nquag Tsom iav Eyeglass hloov:Rau cov tib neeg uas xav tau kev kho rau ob qho kev ncua deb thiab kev nyeem ntawv kaw (piv txwv li kev nyeem ntawv thiab tsav tsheb), uas yuav ua tsis yooj yim.
Cov kev txwv ntawm ib qho kev muag khoom muag muag:
①.Lim ntau ntau yam: Ib qho kev pom muaj ib qho tseeb tsuas yog muaj qhov tsis txaus ntseeg tshwj xeeb rau cov tib neeg uas cuam tshuam nrog ob qho laj thawj hnub nyoog.
②.S.Frequent EYEGLASS HLOOV HLOOV: Cov haujlwm uas xav tau rau ob qho kev kawm deb thiab kev nyeem ntawv thiab tsav tsheb), uas yuav ua tsis tau yooj yim.
2. Bifocal lo ntsiab muag: Lawv yog dab tsi?
Bifocal lo ntsiab muag tau tsim tshwj xeeb rau cov tib neeg uas xav tau kev kho rau ob lub zeem muag deb thiab ze zeem muag. Cov lenses tau muab faib ua ob ntu sib cais: ib feem yog qhov pom cov khoom nyob deb, thaum lwm yam yog rau kev pom cov khoom sib ze, xws li thaum nyeem ntawv. Bificals tau tsim kev lig kev cai tsim los rau chaw nyob Presbyopia, ib qho xwm txheej uas lub qhov muag poob nws lub peev xwm los tsom rau cov khoom kaw raws li cov neeg muaj hnub nyoog.
Cov Nta Tseem Ceeb:
Ob daim ntawv tshuaj noj hauv ib lub lens:Bifocal lo ntsiab muag muaj ob lub hwj chim sib txawv hauv ib lub lens, feem ntau sib cais los ntawm ib txoj kab pom. Qhov saum toj kawg nkaus ntawm lub lens yog siv rau kev ncua deb, thaum lub hauv qab yog siv rau kev nyeem lossis lwm cov haujlwm nyob ze.
Txawv kev sib cais kab:Tsoos bifocals muaj kab los yog nkhaus uas cais ob lub zeem muag aquuctions los ntawm kev ncua deb thiab nyeem cov tshuaj noj tsuas yog txav lub qhov muag nce lossis nqis.
Rau Presbyopia:Feem ntau cov neeg uas cov neeg hnav ris tsho bifocal yog txhawm rau raug qhov prepbyopia. Cov neeg muaj feem ntsig txog hnub nyoog no feem ntau pib cuam tshuam rau tib neeg hauv lawv cov 40s thiab 50s, xws li thaum nyeem lossis siv lub xov tooj smartphone.
Rau ib evipacousous tsis pom kev:Bifocals are ideal for people who need to switch frequently between viewing distant objects (like driving or watching TV) and performing close-up tasks (like reading or using a computer). Ob-hauv-ib tus qauv tsim tso cai rau lawv ua qhov no tsis muaj kev hloov iav.
Siv cov xwm txheej:
Qhov zoo ntawm bifocal lo ntsiab muag:
Yooj yim ob-hauv-ib qho kev daws teeb meem:Bifocals tshem tawm qhov kev xav tau nqa ntau khub ntawm tsom iav. Los ntawm kev sib txuas nrog kev daws teeb meem rau ib khub, lawv muaj cov qauv siv rau cov uas muaj lub zeem muag probyopia lossis lwm qhov pom kev pom muaj qhov pom tau.
Txhim kho qhov muag pom:Rau cov tib neeg uas xav tau txoj kev pom tseeb meej rau ob qho deb thiab kaw ntau, cov bifocals muaj kev txhim kho tam sim uas tsis muaj kev hloov pauv tas li lub khob.
Nqi siv tau nqi rau kev nce qib: Thaum lub sij hawm Bifocal kim dua ib qho chaw muag muag, lawv feem ntau yog cov nyom ntawm cov ntsiab muag, uas muab kev hloov pauv smoother ntawm cov cheeb tsam sib txawv.
Pom kev segmentation: ib qho ntawm cov ntsiab lus tseem ceeb tshaj plaws ntawm Bifocal lo ntsiab muag yog cov kab pom tau cais ob lub zeem muag aonic. Qee tus neeg siv pom qhov kev ua kom tsis zoo no, thiab nws kuj tuaj yeem tsim ib qho "dhia" nyhuv thaum hloov ntawm ob qho chaw.
Tsawg Zeem Muag Tsis Pom Zoo:Tsis zoo li cov ntsiab muag zuj zus, cov bifocals tsuas muaj ob qho tshuaj pleev ib ce-deb thiab ze. Qhov no tawm qhov sib txawv rau kev pom dav nruab nrab, xws li saib lub computer screen, uas tuaj yeem muaj teeb meem rau qee yam haujlwm.
Hloov kho lub sijhawm:Qee tus neeg siv yuav siv sijhawm los kho kom hloov maj mam ntawm ob lub focal, tshwj xeeb thaum nyob deb thiab ze lub zeem muag ntau heev.
Txwv ntawm bifocal lo ntsiab muag:
①.v pom kev segmentation: ib qho ntawm cov kev pom zoo tshaj plaws ntawm Bifocal lo ntsiab muag yog cov kab pom tau cais ob lub zeem muag aonic. Qee tus neeg siv pom qhov kev ua kom tsis zoo no, thiab nws kuj tuaj yeem tsim ib qho "dhia" nyhuv thaum hloov ntawm ob qho chaw.
②.Lim Kev Zeeb suab Intermediate: Tsis zoo li cov ntsiab muag zuj zus, cov bifocals tsuas muaj ob qho chaw noj tshuaj uas muaj tsuas yog ib qho chaw noj tshuaj aav-deb thiab ze. Qhov no tawm qhov sib txawv rau kev pom dav nruab nrab, xws li saib lub computer screen, uas tuaj yeem muaj teeb meem rau qee yam haujlwm.
③.Thaum lub sij hawm: Qee cov neeg siv yuav siv sijhawm los hloov kho sai ntawm ob lub focal, tshwj xeeb thaum nyob deb thiab ze lub zeem muag ntau heev.
3. Cov ncauj lus kom ntxaws ntawm ib lub zeem muag thiab bifocal lo ntsiab muag
Txhawm rau kom nkag siab zoo ntawm cov ntsiab lus tseem ceeb ntawm lub zeem muag thiab bifocal, cia peb sib txawv ntawm cov qauv tsim, muaj nuj nqi, thiab cov neeg siv kev paub.
4. Thaum twg koj yuav tsum xaiv ib lub zeem muag lossis bifocal lo ntsiab muag?
Xaiv nruab nrab ntawm ib lub zeem muag thiab bifocal lenses loj loj yog nyob ntawm koj xav tau qhov tsis pom kev. Nov yog qee qhov xwm txheej uas txhua hom yuav yog qhov kev xaiv zoo:
Opting rau ib leeg lub zeem muag lo ntsiab muag:
①.nsighted los yog fosigheded tib neeg: Yog tias koj tsuas muaj ib hom kev ua tsis ncaj ncees, thiab tsis xav kho kom zoo rau ob qho tib si, thiab kev xaiv lub zeem muag yog qhov kev xaiv zoo.
②.yOunger Cov Tib Neeg: Cov neeg yau feem ntau tsuas yog xav tau kho rau ib hom qhov teeb meem. Vim tias lawv tsis tshua muaj feem yuav tau paub Probbyopia, ib leeg lub zeem muag lo ntsiab muaj cov kev daws teeb meem yooj yim thiab zoo.
Opting rau bifocal lo ntsiab muag:
①. ntsig txog Probbyopia: Yog tias koj muaj kev nyuaj siab tsom rau cov khoom kaw, tab sis tseem xav tau kev kawm deb, Bifocal lo ntsiab muag yog qhov kev xaiv ua.
②.Frequent hloov ntawm ze thiab lub zeem muag uas xav hloov pauv tas li thiab nyeem cov lenses
5. Xaus
Hauv cov ntsiab lus, ib qho kev pom lub ntsiab muag muag thiab Bifocal lo ntsiab muag yog tsim los ua kom tau raws kev kho qhov muag sib txawv. Ib qho kev pom lub ntsiab yog ncaj thiab zoo rau cov hluas lossis cov neeg uas xav tau kho ib hom kev ua tau qhov teeb meem, xws li ze ze lossis fightsightedness. Bifocal lo ntsiab muag, ntawm qhov tod tes, yog ua kom cov neeg laus nrog lub zeem muag uas ze rau thiab deb lub zeem muag, muab qhov kev daws teeb meem yooj yim.
Xaiv cov lo ntsiab muag sab xis yog cov kauj ruam tseem ceeb hauv kev ua kom pom kev zoo rau kev noj qab haus huv thiab kev nplij siab niaj hnub. Kev sab laj los yog tus kws kho mob muaj kev saib xyuas lossis qhov muag pom tau pom zoo los txiav txim siab yam lo ntsiab muag uas haum rau koj tus kheej xav tau.
Lub Sijhawm Post: Oct-16-2024