Iiglasi zelanga bezisoloko zisisisixhobo sefashoni yasehlotyeni kunye nokumila kweconcave engqondweni yomntu wonke. Kwaye ixesha elininzi sicinga ukuba iiglasi zelanga kufuneka zinxitywe kuphela ehlotyeni. Kodwa kufuneka sazi ukuba umsebenzi oyintloko wezibuko zelanga kukuthintela umonakalo wemitha ye-ultraviolet, kwaye imisebe ye-ultraviolet ikhona unyaka wonke. Kakade ke, ukuze sikhusele amehlo ethu, sifanele sinxibe iindondo zelanga unyaka wonke. Imitha ye-UV inokusibangela emva kwayo yonke into. I-Conjunctivitis, i-keratitis, i-cataracts, ngakumbi kubantu abadala abane-cataracts banda ngenani kwiminyaka yamuva. Kwaye iminyaka yokuqala ithande ukuhla. Ngoko unokugqoka ebusika. Iindondo zelanga nazo zinokuthintela umoya kwaye zinciphise umonakalo wesanti namatye emehlweni akho. Eyokugqibela. Iindondo zelanga zinokunciphisa kakhulu ukubonakaliswa kwemitha ye-ultraviolet evela elangeni kwiindlela ezinekhephu. Ikhephu lingabonakalisa ngaphezu kwe-90% yemitha ye-ultraviolet ekukhanyeni kwelanga. Kwaye ukuba sihamba ze, ke le nxalenye enkulu ye-ultraviolet UVA iya kubangela ukuba ulusu lwethu luguge, kwaye i-UVB kunye ne-UVC iya kukhanya emehlweni ethu, ifikelele kwi-cornea yokonakalisa amehlo. Ngoko ke, kufuneka sinxibe iindondo zokukhusela amehlo ebusika.
Ngoko ke kufuneka sizithenge njani iindondo zelanga?
Okokuqala, sikhetha umbala ongentla. Xa kuthelekiswa nehlobo, ukukhanya kuya kuba mnyama ebusika. Ngoko zama ukukhetha imibala ekhanyayo xa ukhetha.
1. Ilensi engwevu
Ifunxa imisebe ye-infrared kunye ne-98% yemitha ye-ultraviolet, ayitshintshi umbala wokuqala wendawo, umbala ongathathi hlangothi, olungele ukusetyenziswa ngabantu bonke.
2. Iilensi ezipinki nezimfusa
Ifunxa i-95% yemitha ye-UV. Kunconywa ukuba abafazi abavame ukugqoka iiglasi zokulungiswa kombono bakhethe iilensi ezibomvu, ezinokuthi zifake kangcono imisebe ye-ultraviolet.
3. Ilensi emdaka
Ifunxa i-100% yemitha ye-UV, ihluza ukukhanya okuninzi okuluhlaza okwesibhakabhaka, iphucula umahluko obonakalayo kunye nokucaca, kwaye iphambili kubantu abaphakathi kunye nabantu abadala. lukhetho lomqhubi.
4. Iilensi eziluhlaza ezikhanyayo
Inokunxitywa xa idlala elunxwemeni. Iilensi eziluhlaza zimele ziphetshwe xa siqhuba kuba zinokwenza kube nzima ukwahlula imibala yezibane.
5. Ilensi eluhlaza
Iyakwazi ukufunxa ngokufanelekileyo imitha ye-infrared kunye ne-99% yemitha ye-ultraviolet, yandise ukukhanya okuluhlaza ukufikelela emehlweni, kwaye yenza abantu bazive behlaziyekile kwaye bekhululekile. Ifanelekile kubantu abanomdla wokukhathala kwamehlo.
6. Ilensi etyheli
Iyakwazi ukufunxa i-100% yemitha ye-ultraviolet kwaye ifunxe uninzi lokukhanya okuluhlaza, okunokuphucula umlinganiselo wokuchasana.
Ixesha lokuposa: Jul-09-2022