Ehlotyeni eshushu, imitha ye-ultraviolet iya kuba namandla. Ngesiseko sokukhathala, amehlo aya kujongana nomngeni wemitha ye-ultraviolet. Imitha ye-ultraviolet eyomeleleyo ngamanye amaxesha inokubangela "ukubetha" kwamehlo.
Ingakanani ingozi enokuthi imitha ye-ultraviolet ibangele emehlweni ethu? I-solar ophthalmia, esihlala sisiva ngayo, ngumonakalo omkhulu wamehlo obangelwa ukukhanya kwelanga. Emva kwamafu, umphezulu wamanzi ozolileyo, okanye iindawo ezinkulu zekhephu zibonisa ukukhanya kwelanga, i-cornea ye-eyeball engaphandle ye-eyeball itshiswa yimitha ye-ultraviolet. Amehlo aya kuba neentlungu eziqatha, ukoma, iinyembezi, ukuva igrabile emzimbeni wasemzini, ukuxinana kweconjunctival, ukudumba, njl. Kuyimfuneko ukuba neepeyi zelanga ehlotyeni!!
Indima yeendondo zelanga
01 Thintela ukuba sesichengeni kwimitha ye-ultraviolet ekukhanyeni kwelanga
Umsebenzi oyintloko wezibuko zelanga kukuthintela imisebe ye-ultraviolet ekukhanyeni kwelanga ukuba ibangele umonakalo emehlweni. Xa amehlo echanabeke ekukhanyeni okuninzi, iris ngokwemvelo iya kufinyela ukuze inciphise ukukhanya okungena kuyo, kodwa xa ukukhanya kungaphezu kwamandla eliso omntu okuhlengahlengisa, kuya kuyonakalisa iretina. Iindondo zelanga zinokuhluza ukuya kuthi ga kwi-97% yokukhanya okungena esweni, ngaloo ndlela kuthintelwa lo monakalo. Ukongezelela, iiglasi zelanga azikwazi nje ukuvala imitha ye-ultraviolet kodwa kunye nemitha ye-infrared, ikhusela ngakumbi amehlo emonakalweni.
02 Thintela ukuba sesichengeni kwilitha
Omnye weyona misebenzi iphambili yeendondo zelanga kukuthintela ukuvezwa kwe ilitha. Eminye imiphezulu, enjengamanzi, inokubonakalisa ukukhanya okukhulu, nto leyo ebangela uvakalelo olunamandla lwelitha. Eli litha linokuphazamisa ukubona okanye lenze izinto zibonakale ziluzizi. Iilensi ze-polarized ziyakwazi ukuphelisa ngokufanelekileyo eli litha. Ibha yokuphola embindini welensi inokuthintela zonke iintlobo zokukhanya okungacwangciswanga, iguqule isibane sibe sisibane esihambelanayo ukuze singene emehlweni, ngaloo ndlela siphucula ukucaca okubonakalayo.
03 Vimba umoya nesanti
Iindondo zelanga zidlala indima ebalulekileyo ekuthinteleni umoya nesanti. Xa abantu bekwimeko-bume enomoya nesanti, iilensi zezibuko zelanga zinokuvala ngokufanelekileyo isanti ephaphazelayo kwaye zinciphise ukucaphuka kunye nomonakalo wamehlo obangelwa ngamasuntswana esanti. Ukongezelela, iifreyimu zeendondo zelanga ngokuqhelekileyo ziyilelwe ukuba ziqine ngakumbi, nto leyo enokuthintela ngakumbi umoya nesanti ekungeneni kwamehlo. Ngoko ke, kwimozulu enomoya kunye nesanti okanye imisebenzi yangaphandle, ukugqoka izibuko zelanga akuncedi nje ukukhusela amehlo kumoya kunye nesanti kodwa kuphucula induduzo ebonakalayo.
Indlela yokukhetha izibuko zelanga ngokuchanekileyo
Ukunxiba iindondo zelanga okanye iindondo zelanga kufuna uzinxibe kwiziko lesibhedlele lamehlo. Ukukhetha iiglasi ezikulungeleyo awukwazi ukufezekisa injongo yobuhle kuphela kodwa unciphise imisebe ye-ultraviolet elangeni, okwenza amehlo akhululeke kwaye ahlale. Ukusetyenziswa kwezibuko zelanga okanye izibuko zelanga kufuneka kuqhutywe phantsi kolawulo oluchanekileyo lweengcali zamehlo ukuphepha umonakalo wamehlo ngenxa yokungafanelekanga.
Ngoko, sijongene noluhlu olubanzi lwezibuko zelanga, sifanele sikhethe njani? Kuyimfuneko ukulungiselela iperi yezibuko zelanga ehlotyeni, kodwa ukuba ukhetha iperi yeglasi engaphantsi, ayiyi kusilela nje ukuxhathisa imitha ye-ultraviolet kodwa iphinde yandise abafundi kwaye yenze ilensi yamehlo ifunxe ngakumbi imitha ye-ultraviolet. Ngoko ke, xa ukhetha izibuko zelanga, umntu kufuneka athathele ingqalelo zombini impilo kunye nokuhlobisa. Ngokuqhelekileyo, asinakuxelela ngeso lenyama ukuba iperi yeglasi inomsebenzi we-anti-ultraviolet. Ilogo yemveliso isalathiso kubathengi ukuthenga iiglasi zelanga. Abahlali banokubona iimpawu ezifana nethi “UV400″ nothi “Vimba yonke imitha yeultraviolet” kwiileyibhile zezinye iimveliso nangaphambili kwiiglasi.” Iingcali zicebisa ukuba ukuze ukhusele impilo yamehlo, kufuneka ukhethe iiglasi zelanga ezinokhuselo lweUV ukuze uphelise imitha yeultraviolet engaphantsi kwama-380nm kangangoko kunokwenzeka.
Iilensi kufuneka zibe ngwevu, zibe mdaka, okanye zibe luhlaza.
"Iimpembelelo zemibala eyahlukeneyo yeelensi zelanga azifani. Iilensi ezimdaka ziyakwazi ukufunxa imfusa kunye neblue ekukhanyeni, phantse zifunxa i-100% yemitha yeultraviolet kunye ne-infrared, kwaye umbala othambileyo wenza amehlo angadinwa; iilensi ezingwevu ziyakwazi ukufunxa ngokupheleleyo imitha ye-infrared kwaye uninzi lwemitha yeultraviolet ngaphandle kokutshintsha umbala wokuqala wendawo; imitha ye-9 yeglasi eluhlaza nayo yonke imisebe ye-ultraviolet iyakwazi ukufunxa yonke imitha ye-9%. Ilungele ukukhuselwa kwamehlo Umbala welensi kufuneka ukhethwe ngokusekwe kumgaqo wokuba umbala wokusingqongileyo awugqwethwanga, imiphetho yezinto icacile, kwaye imibala eyahlukeneyo yezibane zendlela inokuchongwa ngempumelelo Izifundo ziye zafumanisa ukuba ukukhanya okuluhlaza okwesibhakabhaka ekukhanyeni kwelanga kunokwenzakalisa amehlo abantu, kwaye iilensi eziluhlaza azikwazi ukuhluza ukukhanya okuluhlaza okwesibhakabhaka ekukhanyeni kwelanga, ngoko ke, kungcono ukukhetha i-lens yelanga. amandla okuthintela ukukhanya, kodwa oko akuthethi ukuba ukukwazi ukukhusela imisebe ye-ultraviolet kunamandla. Umbala welensi yelanga ngokubanzi ubunzulu obuphakathi, ngaphandle koko, kunzima ukuchonga umbala wesibane sendlela.
Ukuba ufuna ukwazi ngakumbi malunga nefashoni yeglasi kunye nothethwano lweshishini, nceda undwendwele iwebhusayithi yethu kwaye uqhagamshelane nathi nangaliphi na ixesha.
Ixesha lokuposa: Sep-02-2024