Abantu abaningi bangase bangayiqapheli, kodwa indlela ephephile kuphela yokubuka ukuphela kwelanga kusezihlungi ezikhethekile zelanga. Amehlo akho nombono kungenye yezinzwa zakho eziyigugu kakhulu. Kungase kubonakale kungenakwenzeka, kodwa ukulimaza amehlo akho ngokumane ubheke phezulu ekupheleni kwelanga kungenzeka kakhulu. Ukugqoka "izibuko zokugcoba" okhethekile kunconywa kakhulu ekubukeni ukushona kwelanga.
I-American Optometric Association (AOA) iphakamisa ukusebenzisa umbukeli welanga ogcinwe ngesandla, izihlungi zelanga ezikhethekile-njll, noma ezinye izihlungi eziqinisekisiwe ze-ISO uma uhlela ukubuka ukuphela kwelanga ngisho nesikhathi esifushane.
Ingozi Ezimweni Zakho
Kungase kubonakale kungenabungozi, kodwa ukubheka ukuphela kwelanga ngamehlo ahamba phambili kungabangela ukulimala kwamehlo okujulile kanye nokulimala okungapheli emehlweni akho. Amanani amaningi ngokweqile emisebeni ye-ultraviolet ingabangela i- photokeratitis , efana ne-sunburn emehlweni. Ukubheka ngokuqondile elangeni ngesikhathi sokucwiliswa kungabangela ukuthambekela kwelanga.
Ngosuku oluvame ukushisa ilanga, ukubuka ngqo elangeni kubangela ubuhlungu , kukuphoqa ukuba ubheke kude ngaphambi kokuba umonakalo wenziwe emehlweni akho. Kodwa-ke, ngesikhathi sokushona kwelanga, ilanga libonakala likhanya kancane, likuvumela ukuba ubuke isikhathi eside. Ngeke uqaphele, kodwa njengoba ubheka ukukhanya kwelanga, imisebe ye-ultraviolet ishisa amaseli eceleni kwe- retina yakho. Uma i-retina ishiswa, ayikho indlela yokulungisa umonakalo nombono uzolahleka.
Imisebe inamandla ngokwanele okwenza ubumpumputhe obungapheli noma obuhlala njalo.
Okwenza Udinga Iilazi Ezikhethekile
Uma ufuna ukubuka ukuphela kwelanga, kufanele ugqoke izibuko ezikhethekile zokugcoba. Izihlungi zokubukwa zithengiswa ngendlela yokugqoka "izibuko zokucima" noma "ukukhanya kwelanga" noma amakhadi okubukela elangeni ophethe esandleni sakho.
Lawa madivaysi elula anciphisa ukukhanya kwelanga kumazinga aphephile ukugwema ukulimaza amehlo akho. I-AOA ikhuthaza ukuhleleka kokukhanya kwelanga izigesi ezihambisana namazinga ase-American Astronomical Society (AAS). Uhlu lwabakhiqizi abaqinisekisiwe lungatholakala kwiwebhusayithi ye-AAS. Ngaphambi kokuphela kokushisa kwelanga, imakethe iba yizikhukhula ngezingilazi zokuqeda iziqhwa ezibhalwe njengokungathi zi-ISO-ezihambisanayo uma empeleni zingekho. Izibuko ezivamile aziphephile ukubuka ukuphela kwelanga.
Yini Okufanele Uyihlole
Kungenzeka ukuthi uthole izibuko ezishisayo zezingilazi zelanga. Ngeshwa, ukubona nje i-ISO logo kudivayisi yokubuka akusho ukuthi umkhiqizo uphephile ngokuphelele. Idivayisi kufanele ivele kumkhiqizi ohloniphekile noma umdayisi ogunyaziwe. Hlola iwebhusayithi ye-AAS ukuze uthole uhlu lwabashengisi abaphephile.
Futhi, hlola idivayisi ukuze uzivikele. Bheka ngokusebenzisa izibuko futhi uqiniseke ukuthi awukwazi ukubona izibani zokukhanya okuvamile. Kumele ukwazi ukubona ukukhanya okugqamile kakhulu, njengokukhanya kwelanga noma ukukhanya okukhanyayo kwe-LED okukhanyayo. Lezi zibani kufanele zonke zibonakale zidlule ngedivayisi yakho. Uma ilanga elivamile libonakala lingenakuzwakala kahle, idivayisi cishe ayilungile futhi ayihambisani namazinga we-ISO.
Ngaphezu kwalokho, qinisekisa ukuthi idivayisi yakho ayinamahloni noma izimbobo.
Amathiphu wokubuka i-Solar Eclipse
Uma uhlela ekubukeni ukushona kwelanga, yiba nezibuko zakho ezikhethekile zokugcina ukukhanya kwe-ISO ezilungele futhi ulandelele amathiphu abalulekile okuphepha:
- Uma ugqoka izibuko, faka izibuko zakho zokugcoba phezu kwazo. Uma bengakufaneleki, bamba umbukeli ophethe ngesandla phambi kwezibuko zakho.
- Ukuphatha izingane ezincane zisebenzisa izihlungi zelanga.
- Gcoba amehlo akho ngezibuko zakho zokugcoba ngaphambi kokubuka phezulu elangeni. Futhi, ungasusi izibuko zakho ngenkathi ubheka ilanga. Bheka kude kuqala, bese ususa.
- Ungaqapheli ngokuqhubekayo elangeni, ngisho nangezibuko ezikhethekile. Thatha amakhefu amaningi ngokubheka kude.
- Jabulela ubuningi bama-eclipses elanga ngokuphepha ngokulandela izinqubo zokuphepha.
Izwi elivela
Uma ubheka ngokuqondile ilanga ngesikhathi sokuphela kwelanga bese ucabanga ukuthi kungenzeka wonakalise amehlo akho, kungcono ukubona i-optometrist ngokushesha. Kubaluleke kakhulu ukuqinisekisa ukuthi akukho umonakalo omkhulu noma unomphela okwenzekile, yize ungenayo izimpawu noma izimpawu zokulimala. Kuhlale kungcono ukuphepheka kunokudabuka uma kuziwa embonweni wakho.
> Imithombo:
> Behar-Cohen F, Baillet G, Ayguavives, T, et al. Ukulimala kwe-Ultraviolet iso kubuyekezwe kabusha. I-Clin Ophthalmol. 2014; 8: 87-104.
> I-NASA Incoma amathiphu okuphepha ukubuka i-August Solar Eclipse, i-NASA. Agasti 2017.