Imisebe ye-ultraviolet evela elangeni ingabangela ukulimala okubangela emehlweni akho njengoba usudala - kodwa ungavikela umbono wakho ngokugqoka izibuko zelanga zonke ngisho nasesimo sezulu esibhakabhaka. Nakhu okudingeka ukwazi mayelana nokukhetha izibuko ezibukeka kahle kakhulu, ukuvimbela izinkinga eziphathelene nobudala kanye nezinye izinkinga zeso ngokuhamba kwesikhathi.
I-UV Radiation ne-Eye Ekhulile
Njengoba sikhula, amehlo ethu angaguquki okungokwenyama okungabangela izinkinga zombono kanye nezifo zamehlo ezinjenge- age-sensitive macular degeneration kanye ne- glaucoma .
Ukukhanya kwe-ultraviolet kusuka elangeni kunezinhlobo ezimbili zemisebe, ama- UV , nama-UVB (okubangela nokufaka isithombe nokuchofoza isikhumba sethu). Njengoba ukukhanya kwe-UV kuthwala amandla ngaphezu kokukhanya okubonakalayo, kungenza umonakalo omkhulu emehlweni ethu. Njengoba sikhula, umonakalo usuke unesikhathi esiningi sokuqoqa: i-cataract, (i-cloudiness ye-lens) njengesibonelo, ikholelwa ukuthi ibangelwa iminyaka eminingi yokuvezwa kwelanga.
Izibuko zelanga ezihloselwe ukuvimbela amaphesenti angu-100 we-UVU ne-UVB zizovikela amehlo akho ngokumelene nalomonakalo okwenziwe.
Ingabe I-Lens Darkness Indaba?
Nakuba ama-lens amnyama kakhulu angase abonakale ehlinzeka ngokuvikelwa okukhulu, ubumnyama i-lens ithinta kuphela ukukhanya okubonakalayo, hhayi ukukhanya kwe-ultraviolet.
UNatalie Hutchings, uprofesa ohlangene e-University of Waterloo's Optometry kanye neScience Vision, uthi ama-lens amnyama angabangela ukuba umfundi weziliso akho abe mkhulu ukuvumela ukukhanya okwengeziwe, okwenza ukuvikelwa kwe-UV kubaluleke nakakhulu.
"Umdwebo wobumnyama nombala wendwangu noma ubuciko akuzona izici ezivikela amehlo akho," ungitshela. "Kubalulekile ukhethe izibuko ezivimbela 100% ukukhanya kwe-UV, kokubili i-UVA ne-UVB. Lokhu kuvikelwa kungaba umsebenzi wezingilazi ezenziwe, ukuqina kwezinto ezibonakalayo, noma kungaba ukugqoka i-lens - ngisho nama-lens ngaphandle kombala noma ukubopha nhlobo.
Kuyinto yokuvinjelwa kwe-UV okungu-100% okufanele uyibuke kule ilebula, ngoba awukwazi ukutshela ukuthi unayo yini, nje ngokubuka izibuko. "
Amathiphu Wokukhetha Izibuko Zemibala Ezingcono Ukuvimbela Izifo Nezinye Izinkinga Zamehlo
Ngokusho kwe-American Academy of Ophthalmology (AAO), izibuko ezinhle kakhulu zinikeza:
- Ukuvikelwa kwe-100% kwe-UV
- Ikhwalithi ephezulu ye-optical (lens ayinakho ukukhubazeka okukhiqizwa njengamabhule noma amagagasi angabangela amehlo akho
- Ama-lens angagxiliki
- Ifreyimu enkulu ehlinzeka ngokubhekwa okwengeziwe kwendawo yeso
Ngaphezu kwalokho, khetha izibuko ezibukeka kahle futhi uzivumelanise kahle ubuso bakho, ngoba uzothambekela kakhulu ukuzigqoka. I-Hutchings iphakamisa ukuthi abadala asebekhulile bangase bakhethe amafrimu amakhulu amakhulu, okulula ukuwaphatha ngeminwe ye-arthritic.
Ukusebenza kwamaLensi aphefumulayo
U-Hutchings uthi ama-lensi aphefumulayo asebenza ekukhanyeni okubonakalayo (hhayi ama-UV emisebe), ngokuvimbela ukukhanya okukhanyisiwe okubonakala kubuso obuqine njengeqhwa, amanzi noma umgwaqo oshisayo. Cabanga ngama-lensi aphefumulayo uma usuqa, uhlala eduze kwamanzi, noma uthola ukuthi ukhululekile ngenkathi ushayela. Ngesikhathi lezi lensi zivama kakhulu, ungathola ukuthi uzikhetha uma ukhula.
Lapho Kufanele Ugqoke Izibuko ZamaLanga ukuze Uvikele Amehlo Akho
I-AAO itusa ukugqoka izibuko zokubukela noma kunini lapho uhlala ngaphandle, ikakhulukazi ehlobo, lapho izinga le-ray lokukhanya kwe-UV liphindwe kathathu lenye yezinye izikhathi zonyaka.
Ngaphezu kwalokho, kufanele uqaphele ukugqoka izibuko zokukhanya lapho kusemanzini noma eqhweni, uma kukhanya imilayezo ekhanyayo.
Abantu abadala abadala bangathola ukuthi badinga ukugqoka izibuko ngokuvamile kaningi kunalokho ababekujwayele, kusho uNatalie Hutchings, ngoba ukukhanya okudlula i-cornea ne-lens kuhlakazekile kuze kube sezingeni elikhulu ekuguleni. Lesi sici sokuhlakazeka singaphazamisa futhi sithukuthele, kodwa sinciphisa ukusetshenziswa kwezibuko, ikakhulukazi ezinkulu ezivimbela ukukhanya okuvela ezinhlangothini.
Ukugqoka izibuko zokukhanya emva kokuhlinzwa kwe-Cataract
Ngesikhathi sokuhlinzwa kwe-cataract , i-lens entsha ye-intraocular (i-IOL) ifakwe ukuze ithathe isikhundla se-lens endala.
Amalense amaningi ase-intraocular manje athola ukukhanya kwe-UV. Uma ngabe ube nokuhlinzwa kwakho kwe-cataract esikhathini esedlule, i-lens yakho ingase ingatholi ukukhanya kwe-UV, futhi kufanele ugqoke izibuko zokukhanya ezihlinzeka lokho kuvikelwa. I-AOO incoma ngisho nabantu abanama-lens abamba ama-UV ngemuva kokuhlinzwa kwe-cataract bagqoke izibuko zokuzivikela ezivikelayo.
Ezinye Izindlela Zokuvikela Amehlo Akho Ebusweni
Izibuko zemibukiso zinikeza uhlobo olulodwa nje lokuvikelwa kwamehlo okuguga. I-Health Canada namanye ama-ejensi ayeluleka futhi agqoke i-visor noma isikhwama esikhulu esiphezulu lapho ungaphandle futhi ugweme izikhathi zokukhanya kwelanga okugqamile kakhulu, okufana nezinsuku zasehlobo phakathi kwamahora ka-11 ekuseni no-4 ntambama (uma i- UV index isiphezulu ).
Imithombo
Ukuguga Namehlo Akho. Isikhungo se-US National on Information Sheet Public Information Sheet.
Natalie Hutchings. UFrofesa ohlangene, iSikole se-Optometry neS Vision Science, University of Waterloo. Ingxoxo eyenziwe ngocingo May 21, 2013.
Izibuko zelanga. I-Health Canada Sheet Information Sheet.
Izibuko zemibukiso: Ukuvikeleka kusuka ku-Eye Eye Damage. I-American Academy ye-Ophthalmology Ishidi Lolwazi Lomphakathi.