Vim li cas hnav "tsav tsom iav" yog qhov teeb meem tiag tiag
Tsis txhob ntseeg txhua yam uas tau sau rau hauv kev tshaj tawm tsom iav. Cov xim zoo nkauj zoo nkauj, pom tau tias zoo rau lub qhov muag, tuaj yeem ua kom yuam kev ntawm koj qhov muag.
Tus tswv tsheb nruab nrab, raws li txoj cai, paub tseeb tias cov classic "tsav tsheb iav" yuav tsum muaj cov lo ntsiab muag daj lossis txiv kab ntxwv. Tag nrho Is Taws Nem hauv kev sib koom ua ke lees paub peb tias nws yog ua tsaug rau daj "iav iav" tias lub teeb ntawm lub teeb tom ntej yog qhov muag tsis pom thaum hmo ntuj, thiab txhua lub sijhawm ntawm nruab hnub, cov khoom nyob ib puag ncig thaum saib los ntawm cov nqaij qaib xim lo ntsiab muag pom meej dua thiab ntau dua. sib piv.
Yuav ua li cas lub hom phiaj xws li kev sawv cev yog ib lo lus nug tsis sib cav, ntau dhau ntawm no yog "txuas" rau tus kheej kev xav.
Tab sis txhua tus kws kho mob ophthalmologist yuav qhia rau koj paub tias cov xim daj ntawm lub lo ntsiab muag ua rau lub paj hlwb thiab ua rau lub siab ua rau lub cev. Piv txwv li, rau ib tug kws phais neeg, xws li tsom iav yog categorically contraindicated. Thiab rau tus neeg tsav tsheb, ntawm qhov nws ua lub neej ntawm ntau pua tus neeg nyob ib puag ncig, rau qee yam, lawv raug pom zoo ...
Qhov tseeb, lub tswv yim ntawm "tsav iav" tsis muaj dab tsi ntau tshaj li kev lag luam gimmick. Muaj cov looj tsom iav dub muaj txiaj ntsig zoo rau kev pom thiab muaj kev phom sij, txwv tsis pub nws tsis muab. Cov xim zoo tshaj plaws rau lub qhov muag ntawm lawv lo ntsiab muag yog nyob hauv thaj tsam ntawm grey, xim av, ntsuab thiab dub. Cov tsom iav no thaiv lub teeb kom ntau li ntau tau.
Qhov teeb meem loj tshaj plaws xim xim hauv cov looj tsom iav dub yog xiav. Nws tsis thaiv qhov ultraviolet (UV) ib feem ntawm lub hnub ci, tsim kom pom qhov tsaus ntuj. Cov menyuam kawm ntawv los ntawm qhov no qhib dav dua thiab pom tsis pom UV hluav taws xob hlawv tawm ntawm retina.
Yog li ntawd, raws li cov looj tsom iav tiag tiag, nws ua rau kev txiav txim siab tsuas yog tsom iav nrog cov txheej tshwj xeeb uas absorbs ultraviolet - nrog lub npe hu ua UV lim. Tsis tas li ntawd, nws yog qhov xav tau heev uas lawv cov lo ntsiab muag nrog cov nyhuv ntawm polarization. Ua tsaug rau nws, glare raug tshem tawm, nkees qhov muag.
Sib npaug insidious yog tsom iav nrog lub lens tsis sib xws, piv txwv li, thaum lub iav sab saum toj yog tsaus dua li hauv qab. Kev taug kev luv luv hauv lawv yuav tsis ua teeb meem, tab sis kev tsav tsheb rau ob peb teev tuaj yeem ua rau lub qhov muag qaug zog thaum "txhua yam ntab" hauv qhov kev pom.
Qhov tseeb, nws yog qhov zoo dua los siv looj tsom iav dub feem ntau tsawg dua. Hnav lawv tsuas yog thaum lub hnub yog qhov muag tsis pom kev tiag tiag. Yog tias koj hnav tsom iav tsaus yuav luag tas li, koj ob lub qhov muag yuav ua tsis tau zoo rau kev ua kom lub teeb ci kom raug thiab yuav tsis tiv nrog nws. Nyob rau hauv rooj plaub no, hnav tsom iav yuav tsis yog ib qho yooj yim, tab sis yog qhov tseem ceeb.
