Cov tsom iav nyeem ntawv yog ib hom tsom iav kho qhov muag, uas muab cov tsom iav myopia feem ntau siv los ntawm cov neeg uas muaj presbyopia, uas yog rau lub lens convex.Cov tsom iav nyeem tau siv los ua kom pom qhov muag ntawm cov neeg laus thiab cov laus.Zoo li cov tsom iav myopia, lawv muaj ntau yam khoom siv hluav taws xob kho qhov muag qhov tseem ceeb uas yuav tsum tau ua los ntawm cov qauv kev lag luam hauv teb chaws, thiab tseem muaj qee qhov tshwj xeeb daim ntawv thov tsis tu ncua.Yog li ntawd, cov tsom iav nyeem ntawv yuav tsum tau nruab nrog tsom iav.
Ua ntej, qhov kev faib tawm ntawm cov tsom iav nyeem ntawv
Tam sim no, muaj peb yam tseem ceeb ntawm cov tsom iav nyeem nyob rau hauv kev ua lag luam, uas yog tib lub zeem muag lens, bifocal lens thiab asymptotic multifocal lens.
Ib lub qhov muag tsis pom kev tsuas yog siv tau los saib ze, thiab kev pom kev yuav tsum tau rov qab los thaum saib nyob deb.Nws tsuas yog tsim nyog rau cov neeg uas muaj presbyopia yooj yim thiab tsawg zaus ntawm kev siv tsom iav nyeem ntawv;
Bifocals hais txog kev nyeem ntawv tsom iav nrog lub ntsej muag sab sauv siv los pom deb, thiab qis dua ib nrab lub ntsej muag lub ntsej muag siv los pom ze, tab sis cov tsom iav nyeem ntawv no yuav pom qhov muag tsis pom thiab thaws, thiab hnav ntev ntev yog qhov ua rau mob qhov muag, kiv taub hau. , thiab lwm yam , cov qauv tsim hauv tsev tsis zoo-zoo, thiab nws tsis yog ib txwm tam sim no;asymptotic multifocal lens tuaj yeem ua tau raws li qhov yuav tsum tau pom qhov muag tsis pom ntawm qhov sib txawv ntawm qhov deb, nruab nrab thiab ze.Cov tsos yog high-tech thiab fashionable, thiab nws yog ntau haum rau niaj hnub myopia tshaj 40 xyoo. Qhov muag ntxiv rau presbyopia, astigmatism pab pawg neeg hnav.
Qhov thib ob, daim ntawv thov scenarios ntawm kev nyeem tsom iav
Presbyopia yog ib qho tshwm sim ntawm lub cev, tsis yog kab mob qhov muag, thiab nws tsuas yog tus neeg laus xwb.Tom qab lub hnub nyoog ntawm 40 xyoo, nrog rau maj mam hardening ntawm cov tshuaj fibers ntawm lub qhov muag lo ntsiab muag thiab maj mam loog ntawm lub ciliary lub cev, tib neeg lub qhov muag tsis tuaj yeem kho qhov zoo ntawm qhov ntsia (radial transformation).Nyob ntawm qhov deb ntawm cov khoom, koj yuav tsum txav mus deb thaum saib cov khoom ze ua ntej koj tuaj yeem pom meej.Tus mob ntawm ob lub qhov muag nyob rau lub sijhawm no yog hu ua presbyopia.
Yog tias presbyopia xav siv qhov muag tsis pom kev ntawm qhov qub nyob deb, nws yuav tsum tau hnav tsom iav nyeem ntawv los sau qhov muag tsis pom kev, kom pom qhov ze ze kom pom tseeb dua.Ob lub qhov muag.Qhov degree ntawm myopia hauv presbyopia muaj feem xyuam rau hnub nyoog.Nrog rau kev loj hlob ntawm lub hnub nyoog, qhov deterioration ntawm lub qhov muag lens yuav nce, thiab cov degree ntawm myopia yuav maj mam nce.
Presbyopia tau tshwm sim, thiab yog tias koj hais kom tsis txhob hnav tsom iav nyeem ntawv, lub cev ciliary yuav qaug zog thiab kho tsis tau, uas yuav ua rau muaj kev nyuaj siab nyeem ntawv, ua rau kiv taub hau, kiv taub hau thiab ntau yam kab mob, uas yuav ua rau muaj kev phom sij rau lub neej txhua hnub thiab ua haujlwm.Siab tus kheej.Yog li ntawd, cov tsom iav presbyopia yuav tsum tau sib phim tam sim ntawd yam tsis muaj ncua sij hawm (Cov neeg Suav muaj lub tswv yim yuam kev: lawv xav tias hnav tsom iav nyeem ntawv yog "mob" hnyav, thiab lawv tsis paub txog qhov muaj nyob ntawm cov tsom iav nyeem ntawv. Qhov no yog lub tswv yim tsis raug).
Tom qab laus lawm, cov tsom iav nyeem ntawv Ameslikas nruab nrog tsis txaus myopia yuav tsum tau hloov tam sim ntawd.Yog li ntawd, cov tsom iav nyeem ntawv yuav tsum tsis txhob hnav txhua lub sijhawm.Kev hnav ntev ntev ntawm kev nyeem tsom iav nrog qhov tsis tsim nyog ntawm myopia yuav tsis tsuas yog ua rau muaj teeb meem ntau rau ib tus neeg lub neej txhua hnub, tab sis kuj tseem ua rau kom cov txheej txheem ntawm binocular presbyopia.
Raws li ib txwm muaj, muaj ob qhov kev tshwm sim tseem ceeb ntawm presbyopia nyob rau theem pib:
Qhov thib ib yog ua haujlwm ze lossis nyeem ntawv nyuaj.Piv txwv li, thaum nyeem ntawv, koj yuav tsum tuav phau ntawv nyob deb, lossis koj yuav tsum nyeem hauv thaj chaw uas muaj lub teeb pom kev zoo kom paub txog nws.
Qhov thib ob yog qhov muag qaug zog.Nrog kev txo qis ntawm kev pab lub zog, kev nyeem ntawv yuav tsum maj mam nce mus txog qhov txwv ntawm kev siv lub zog, uas yog, thaum nyeem ntawv, txhua qhov kev pab lub zog ntawm ob lub qhov muag yuav tsum tau siv, yog li nws tsis tuaj yeem siv lub qhov muag ntev, thiab nws yooj yim heev ua rau qhov muag o vim kev hloov kho ntau dhau., mob taub hau thiab lwm yam kev pom kev qaug zog.
Qhov tshwm sim ntawm ob qho xwm txheej saum toj no qhia tau hais tias qhov muag yuav maj mam dhau los.Rau cov pab pawg myopic, nws yog ib qho tsim nyog yuav tsum tshem tawm cov tsom iav myopic lossis kho cov ntawv nyeem kom deb deb thaum nyeem ntawv nyob ze, uas kuj yog qhov tshwm sim tseem ceeb ntawm presbyopia.Tom qab ob lub qhov muag yog presbyopic, txoj kev nyab xeeb tshaj plaws yog hnav tsom iav nyeem ntawv tsim nyog rau calibration.
Post lub sij hawm: Aug-09-2022