Xa kuziwa kwimisebe ye-ultraviolet, wonke umntu ngokukhawuleza ucinga ngokukhuselwa kwelanga kwesikhumba, kodwa ngaba uyazi ukuba amehlo akho nawo afuna ukukhuselwa kwelanga?
Yintoni iUVA/UVB/UVC?
Imitha yeUltraviolet (UVA/UVB/UVC)
I-Ultraviolet (UV) ukukhanya okungabonakaliyo kunye nobude obufutshane kunye namandla aphezulu, esinye sezizathu zokuba ukukhanya kwe-ultraviolet kuyingozi empilweni. Ngokobude bamaza ahlukeneyo emitha yeultraviolet, imitha yeultraviolet yahlulwe yangamacandelo amathathu: UVA/UVB/UVC. Uninzi lwemitha yeultraviolet esichanabeka kuyo yi-UVA kunye nomlinganiselo omncinci we-UVB. Iliso lelinye lawona malungu abuthathaka emzimbeni wethu. I-UVA wavelengths isondele ekukhanyeni okubonakalayo kwaye inokudlula ngokulula kwi-cornea kwaye ifike kwi-lens. Amandla e-UVB angaphantsi kancinci kune-UVC, kodwa kwiidosi eziphantsi, asenokubangela umonakalo.
Ingozi emehlweni
Okwangoku, imeko-bume ye-ecological isaqhubeka imbi, kwaye “umngxuma” okwi-atmospheric ozone layer uya usiba mkhulu ngokukhula. Abantu bachanabeka kumanqanaba aphezulu emitha ye-ultraviolet eyingozi kunangaphambili, kwaye amandla emitha ye-ultraviolet efunxwa zizicubu zamehlo nawo ayanda ngokuthe ngcembe. Ukufunxa kakhulu imitha ye-ultraviolet kwandisa umngcipheko wezifo zamehlo ezifana ne-photokeratitis, i-pterygoid kunye nokuqhekeka kobuso, i-cataract, kunye ne-macular degeneration.
☀Ke, ungazikhetha njani iindondo zelanga?☀
1. Abantu abane-myopia kufuneka banikele ingqalelo ukuba kukho nakuphi na ukungonwabi okufana nesiyezi xa beyizama. Kucetyiswa ukuba uye kwisibhedlele samehlo sobuchwephesha kwi-Optometry kunye neeglasi ukuze ukhethe iilensi ezifanelekileyo ngakumbi kuwe.
2. Xa uthenga iiglasi zelanga, qiniseka ukuba ufunda ileyibhile okanye ufumanise ukuba ingaba iiglasi zelanga zinokuvala i-99% -100% ye-UVA kunye ne-UVB.
3. Iiglasi ezinemibala ≠ iiglasi zelanga. Abantu abaninzi bacinga ukuba logama nje iindondo zinemibala kwaye zinokuvala ilanga, zizindondo zelanga. Iiglasi zelanga ezifanelekileyo kufuneka zikwazi ukuthintela ukukhanya okuqinileyo kunye nemitha ye-ultraviolet. Umsebenzi oyintloko wombala we-lens kukuthintela ukukhanya okunamandla ukuze abantu babone izinto ngaphandle kwe-glare, kodwa ayikwazi ukuvala imitha ye-ultraviolet.
4. Iilensi zepolarized zinokunciphisa ilitha elibonakala kumphezulu onjengamanzi okanye i-pavement, enokwenza ukuqhuba okanye ukwenza imisebenzi yamanzi ikhuseleke okanye ibe yonwabise ngakumbi, kodwa ayikhuseli kwimitha ye-UV! Kuphela iilensi ezipholileyo eziye zanyangwa ngokhuseleko lwe-UV ezinokukhusela kwimitha ye-UV. Kufuneka uqonde ngokucacileyo ngaphambi kokuthenga.
5. Akungcono ukuba umbala we-lens umnyama kwaye ukhusela ngakumbi! Ayiyithinteli imitha ye-UV engaphezulu!
6. Uhlobo lwezibuko zelanga alukhawulelwanga kuhlobo lwesakhelo. Ukuba sele uneeglasi ze-myopia, ungakhetha ikliphu-kwiiglasi zelanga!
Ukhuseleko lwelanga lwemihla ngemihla lwamehlo lubaluleke ngokwenene. Wonke umntu kufuneka akhulise ukuqonda kwakhe ngokukhuselwa kwelanga kwamehlo kunye nokuphuhlisa imikhwa emihle yokukhusela ngaphandle.
Ukuba ufuna ukwazi ngakumbi malunga nefashoni yeglasi kunye nothethwano lweshishini, nceda undwendwele iwebhusayithi yethu kwaye uqhagamshelane nathi nangaliphi na ixesha.
Ixesha lokuposa: Sep-18-2023