Keeb kwm ntawm cov tsom iav dub tuaj yeem taug qab mus rau xyoo 14th-xyoo pua Suav teb, qhov chaw uas cov kws txiav txim siv cov tsom iav ua los ntawm cov pob zeb quartz uas muaj pa luam yeeb los zais lawv txoj kev xav. 600 xyoo tom qab, tus ua lag luam Sam Foster thawj zaug tau qhia txog cov tsom iav niaj hnub raws li peb paub lawv niaj hnub no hauv Atlantic City. Txij thaum ntawd los, Hnub Tsom Iav Muaj Txhua Xyoo rau Lub Rau Hli 27. Cov xwm txheej txhua xyoo lub hom phiaj yog los nthuav kev paub txog qhov tseem ceeb ntawm kev hnav tsom iav rau kev tiv thaiv ultraviolet.
Vim li cas kev tiv thaiv hnub thiaj li tsim nyog thiab tseem ceeb hauv lub neej txhua hnub?
Cov teeb UV tuaj yeem ua rau koj lub qhov muag puas tsuaj. Kev raug tshav ntuj tuaj yeem ua rau koj muaj mob cataracts 8-10 xyoo ua ntej dua li qub. Tsuas yog ib zaug ntev nyob rau hauv lub hnub tuaj yeem ua rau koj lub qhov muag khaus heev. Muaj ntau qhov zoo rau cov iav uas muaj 100% tiv thaiv UV dua li koj xav. Lub sijhawm tom ntej koj hnav koj cov xim nyiam, koj tuaj yeem siv cov hauv qab no:
1. Kev tiv thaiv los ntawm UVA thiab UVB rays
2. Kev txo qhov ci ntsa iab
3. Kev pab los ntawm kev mob qhov muag
4. Pab tiv thaiv kev puas tsuaj ntawm lub qhov muag, cataracts thiab lwm yam kab mob ntawm lub qhov muag
5. Kev tiv thaiv kab mob qog nqaij hlav hauv thaj chaw nyob ib puag ncig lub qhov muag
6. Tiv thaiv kom tsis txhob muaj hnub ci ntsa iab, uas yuav tiv thaiv tau mob taub hau
7. Kev tiv thaiv los ntawm cov khoom sab nraum zoov xws li av, khib nyiab thiab cua
8. Kev tiv thaiv kev ntsws
Kuv yuav paub li cas yog tias cov tsom iav tiv thaiv hnub puas muaj kev tiv thaiv UV? Hmoov tsis zoo, nws tsis yooj yim los qhia seb koj cov tsom iav puas muaj cov iav tiv thaiv UV tsuas yog saib lawv xwb. Koj kuj tsis tuaj yeem paub qhov ntau npaum li cas ntawm kev tiv thaiv raws li xim ntawm lub lens, vim tias cov xim ntawm lub lens tsis muaj feem cuam tshuam nrog kev tiv thaiv UV. Nov yog ob peb lub tswv yim thaum xaiv koj cov tsom iav tiv thaiv hnub:
• Nrhiav daim ntawv lo rau ntawm cov khoom lossis hauv lawv cov lus piav qhia ntawm lub pob khoom uas lav tau 100% kev tiv thaiv UVA-UVB lossis UV 400.
• Xav txog koj txoj kev ua neej thiab kev ua ub ua no thaum txiav txim siab seb koj puas xav tau cov tsom iav polarized, lossis lub lens photochromic lossis lwm yam ntxwv ntawm lub lens
• Paub tias lub lens tsaus dua tsis tas yuav tiv thaiv tau UV ntau dua
Universe Optical yeej ib txwm muab kev pab thiab cov ntaub ntawv rau kev tiv thaiv tag nrho rau koj lub qhov muag. Thov nias rau peb nplooj ntawv https://www.universeoptical.com/stock-lens/kom tau ntau txoj kev xaiv lossis tiv tauj peb ncaj qha.