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Tsev > Exhibition > Ntsiab lus
Tus txheej txheem tiv thaiv UV
- Apr 22, 2017 -

Ib qho ua rau mob hnyav tshaj plaws yog: UV. Nyob ntawm cov zaus thiab lub sijhawm ntev, UV muab faib ua ob pawg: UVA thiab UVB.

Raws li lub ntuj thaiv qhov kev tiv thaiv mechanism, neeg lub qhov muag mob taub hau yuav nqus tag nrho cov ultraviolet B thiab feem ntau ntawm cov ultraviolet A. Txawm li cas los, tseem muaj ib feem ntawm UVA yuav ncav cuag lub lens ntawm lub qhov muag. Kev nqus dej ntawm UVA ntev ntev tuaj yeem ua rau cataracts, ib qho nyiaj me me los ntawm lub qhov muag ntawm lub qhov muag ntawm ultraviolet A tuaj yeem ua rau retinal macular degeneration, thiab macular degeneration yog tshwm sim los ntawm cov neeg laus muaj hnub nyoog 65 xyoos vim qhov tseem ceeb rau kev dig muag. Ntev mus kis ultraviolet lub teeb yuav ua rau mob cancer lossis actinic keratitis, uas yog qhov hlawv ntawm retina. Qhov teeb meem no feem ntau tshwm sim thaum lub caij ntuj no tshav ntuj sab nraum zoov, cov daus ntawm lub hnub ci, uas feem ntau hu ua snow blind.

Cov tsom iav dub muaj qhov zoo UV-resistant txheej uas cuam tshuam UV hluav taws xob thiab koj yuav tsum xyuas kom koj lub tsom iav (daylight) tau lim tawm ob qhov UV. Cov tsom teeb tsom iav yuav tsum qhia seb qhov twg yog cov tsom iav dub rau tiv thaiv UV, thiab qhov koj xav tau yog 100% kev tiv thaiv.