Nrog rau hnub nyoog, kev muaj peev xwm pom kev phem txawm nyob rau hauv cov neeg uas thoob plaws lub neej tau pom kev zoo meej. Raws li txoj cai, cov poj niam thiab cov txiv neej tom qab muaj hnub nyoog 40 xyoo, presbyopia muaj kev loj hlob, los yog lub hnub nyoog ntev farsightedness. Feem ntau, qhov teebmeem no tsis yog ib txwm ua tau phem rau lub neej zoo, tabsis, nws yog nws tus kheej tshwm sim thaum sim nyeem ntawv lossis ntawv xov xwm.
Nyob rau hauv xws li ib qho teeb meem, kws kho mob xav kom yuav tsom iav tshwj xeeb rau kev nyeem ntawv. Niaj hnub no nyob rau hauv txhua qhov chaw ntawm optics ntau ntau cov khoom siv zoo ib yam yog nthuav tawm, ntawm cov uas nws yog qhov nyuaj heev kom nrhiav tau tus qauv tsim.
Hom tsom iav rau kev nyeem ntawv
Ntawm qhov ntau assortment ntawm zoo xws li accessories txawv cov nram qab no ntau yam:
- tsom iav nrog ib-tsom iav . Lawv muab kev pom pom tseeb ntawm qhov pom ntawm 30-40 centimeters ntawm lub qhov muag thiab npaj rau kev nyeem ntawv. Yog tias yav dhau los koj twb coj qhws tsom iav los lo lo ntsiab muag rau qhov teeb meem ntawm qhov teeb meem, qhov khoom siv no yuav tsum ua rau koj tus thib ob, ua nws txoj hauj lwm tam sim ntawd. Nyob rau hauv xws li txoj kev tshwm sim, ib qho feem ntau yuav tau folding ib-focal iav rau nyeem ntawv nyob rau hauv ib rooj plaub kom lawv tawm rau ib lub sij hawm thiab tshem tawm sai sai tom qab nyeem cov ntawv tsim nyog;
- nqaim bifocal tsom-iav rau nyeem ntawv muaj lo ntsiab muag, muab faib ua 2 thaj chaw kho qhov muag. Qeb ib sab ntawm cov iav tsom iav yog tsim rau kev xav paub txog cov khoom uas nyob ntawm qhov chaw nrug deb heev, thiab ib sab rau kev txhim kho kom pom ze ze, thaum kev taw qhia ntawm qhov pom rushes mus rau hauv av. Qhov tseeb, qhov no yog qhov teeb meem uas tau pom thaum nyeem phau ntawv lossis ntawv xov xwm. Vim yog lub voj voos thiab lub lens, muab faib ua ib thaj chaw tshwj xeeb, xws li tsom iav siv tau nyob rau hauv ntau lub sijhawm, yog li ntawd lawv tuaj yeem hloov ob peb khub ntawm ib zaug;
- qhov zoo tshaj plaws ntawm nyeem ntawv tsom iav rau hnub tim yog cov khoom siv nrog qhov muag lo ntsiab muag , qhov muag optical zog uas nce lossis tsawg zuj zus nyob ntawm qhov deb ntawm lub qhov muag ntawm qhov khoom hauv kev saib xyuas yog. Cov tsom iav yog tsim ib tus zuj zus rau txhua tus neeg thiab yeej kim heev, yog li tsis yog txhua tus muaj peev xwm them taus los yuav qhov khoom siv no.
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Nyias nws yog tsim nyog ntsuas tsom iav rau kev nyeem ntawv . Txawm hais tias cov kws kho mob tsis tuaj yeem pom zoo kom nyeem ntawv hauv ib txoj hauj lwm, ntau tus neeg muaj peev xwm tso tsis tau tus cwj pwm no. Hauv qhov xwm txheej no, koj tuaj yeem siv cov tsom iav tshwj xeeb uas yuav tshem tawm ntau dhau ntawm lub qhov muag thiab qhov ncauj ntawm ncauj tsev menyuam. Tib lub sij hawm, kiag txhua tus neeg siv tau xws li ib qho khoom siv, tsis hais hnub nyoog li cas thiab muaj cov teeb meem ntawm ophthalmologic.
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Raws li koj tau pom, thaum xaiv cov tsom iav rau kev nyeem ntawv, nws yog ib qho tseem ceeb uas yuav tsum tsis txhob xav txog qhov zoo li qhov zoo li cov yam ntxwv ntawm cov qauv. Txawm hais tias, ntawm chav kawm, thiab tus tsim yuav tsum tsis txhob nco qab.
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