Imbali yeeglasi zelanga ingalandelwa emva kwi-14th-century China, apho iijaji zazisebenzisa iiglasi ezenziwe nge-quartz etshayayo ukufihla iimvakalelo zazo. Kwiminyaka engama-600 kamva, usomashishini uSam Foster waqala ukwazisa iiglasi zelanga zanamhlanje njengoko sizazi namhlanje eAtlantic City. Ukususela ngoko, uSuku lweeNgcali zeLanga luba minyaka le nge-27 kaJuni. Iziganeko zonyaka zijolise ekusasazeni ulwazi malunga nokubaluleka kokunxiba iiglasi zelanga ukuze kukhuselwe i-ultraviolet.
Kutheni ukukhuselwa lilanga kubalulekile kwaye kubalulekile kubomi bemihla ngemihla?
Imitha ye-UV ingonakalisa amehlo akho. Ukuvezwa kunokubangela ukuba ufumane i-cataracts kwiminyaka eyi-8-10 ngaphambi kwexesha eliqhelekileyo. Ukuchitha ixesha elide elangeni kunokubangela ukurhawuzelelwa okubuhlungu kakhulu kwi-cornea yakho. Kukho iingenelo ezingaphezulu kwiilensi ezine-100% yokhuseleko lwe-UV kunokuba ucinga. Ngexesha elizayo xa ufaka imibala oyithandayo, ungasebenzisa oku kulandelayo:
1. Ukhuseleko kwi-UVA kunye ne-UVB ray
2. Ukunciphisa ukukhanya
3. Ukunceda ekubandezelekeni kwamehlo
4. Uncedo ekuthinteleni ukuwohloka kwe-macular, i-cataracts kunye nezinye izifo zamehlo
5. Ukhuseleko kumhlaza wolusu kwindawo ejikeleze amehlo
6. Umthunzi kwilanga elikhanyayo, elinokuthintela iintloko ezibuhlungu
7. Ukhuseleko kwizinto zangaphandle ezifana nothuli, inkunkuma kunye nomoya
8. Ukuthintela imibimbi
Ndingayibona njani into yokuba iiglasi zelanga zikhuselwe yi-UV? Ngelishwa, akulula ukubona ukuba iiglasi zelanga zakho zineelensi ezikhusela i-UV ngokuzijonga nje. Awunakukwazi ukwahlula ubungakanani bokhuseleko ngokusekelwe kumbala welensi, njengoko imibala yelensi ingenanto yakwenza nokhuseleko lwe-UV. Nazi iingcebiso ezimbalwa xa ukhetha izibuko zakho ezikhusela ilanga:
• Khangela ilebheli kwimveliso ebonakalayo okanye kwinkcazo yephakheji yabo eqinisekisa ukhuseleko lwe-100% UVA-UVB okanye i-UV 400.
• Cinga ngendlela ophila ngayo kunye nemisebenzi yakho xa usenza isigqibo sokuba ufuna iiglasi zelanga ezinemibala eqaqambileyo, okanye ilensi ye-photochromic okanye ezinye iimpawu zelensi.
• Yazi ukuba umbala welensi emnyama awuniki ukhuseleko olungakumbi kwi-UV
I-Universe Optical isoloko inika uncedo nolwazi lokukhusela amehlo akho ngokupheleleyo. Nceda ucofe kwiphepha lethu https://www.universeoptical.com/stock-lens/ukuze ufumane ezinye iindlela okanye unxibelelane nathi ngokuthe ngqo.