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subject: Do You Really Know the Polarized Glasses? [print this page]

But,whenmanypeopleselectthesunglasses,theyalwaysthoughtthat,thedeeperthecolorofthelensesis,thestrongertheeffectofpreventingtheUVwillbe.Infact,thedeeperthecolorofthelensesis,thebiggerthepupilwillbe.

Therefore,choicethesunglassescorrectlyisveryimportant.Firstofall,toavoidUVdamagetotheeyes,weshouldtrytoavoidtobeexposedunderthesunstrangely,especiallybetweenthe10:00and14:00inthemorning.Atthistime,thesunlightraytotheEarth'ssurfacedirectly,andtheintensityoftheUVisthebiggest. EspeciallywhentheUVreflectiongoingthroughtheconcretefloor,snow,sandorwater,itwillbemostpowerfulandhasthegreatestharmtotheeyesanditwillbethemosteasilyoverlooked.Therefore,ifyoudoactivitiesinalongtime,remembertowearappropriatepolarizedsunglasses.

Generally,theuseofsunglassesisthetoreducethelightofsun,butthiskindoflenscannotfilterlight,itcanonlyreducetheglare,UVintensity,etc.Anditcannotcompletelyblocktheseharmfulrays,itsfunctionistoreduceeyeinjury,butgenerallybiggestadvantageofsunglassesisbeautiful.Polarizedlensescancompletelyblocktheharmfullightbecauseofitsspecialfunction,anditcanprotecteyesfromthescatteringandreflectioncausedby variousfactorssuchasthedazzlingglare.Itcanalsocompletelyblockultravioletradiation. Soevenifyoudolong-termactivitiesundersunshine,eveninbrightlight,youreyeswillnoteasilygettired.Itwillgiveyourealprotection,andalsoallowsyoutoseethingsmore clearlyandsolid.

Sodoyoureallyknowwhatthepolarizedsunglassesare?Hopeyoureyesgetshinierinall kindsofglasses.

Do You Really Know the Polarized Glasses?

By: ketaivip

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