Qhov teeb meem tseem ceeb nrog cov looj tsom iav tsis zoo hauv khw yog tias lawv tsis tuaj yeem tiv thaiv cov kab hluav taws xob ultraviolet.
Qee cov xim tsaus heev. Thaum hnav, cov menyuam kawm ntawv ntawm cov neeg nyob hauv qhov tsaus ntuj yuav loj dua, uas ua rau kom lub teeb nkag mus rau hauv qhov muag.
Kev raug ultraviolet ntev ntev tuaj yeem ua rau qhov muag qhuav, qaug zog, thiab kua muag. Nyob rau hauv cov xwm txheej hnyav, nws yuav ua rau muaj kev puas tsuaj rau lub qhov muag, pob txha, lub qhov muag, thiab retina ntawm lub qhov muag, thiab nws yooj yim los tsim blepharoplasty, pterygium, cataract, macular degeneration thiab lwm yam kab mob.
Nws yog ib qho tseem ceeb tshwj xeeb uas yuav tsum nco ntsoov tias cov menyuam yaus cov looj tsom iav dub tsis muaj kev tiv thaiv ultraviolet muaj nuj nqi thiab muaj "diopter" uas tshaj qhov nyiaj pub dawb. Qee qhov tsuas yog cov khoom ua si xwb, tab sis raug muag raws li cov menyuam yaus looj tsom iav dub.
Vim hais tias cov me nyuam lub zeem muag thiab kev pom kev ua haujlwm nyob rau theem kev loj hlob, yog tias lawv feem ntau hnav tsom iav tsis zoo uas tsis ua raws li qhov yuav tsum tau ua, nws yuav ua rau lub nra hnyav ntawm qhov muag thiab kev sib tshuam, cuam tshuam rau kev loj hlob ntawm kev pom kev ua haujlwm, thiab yooj yim ua rau kev puas tsuaj. .
