Izibuko zelanga: Izibuko zelanga ekuqaleni zibizwa ngokuba yi-sunshades, kodwa ukongeza kwi-shading, nazo zinomsebenzi obalulekileyo, ukukhuselwa kwe-UV! Ke ngoko, ayizizo zonke iiglasi ezinemibala ezibizwa ngokuba ziiglasi zelanga. Ngelixa sisukela ifashoni, kufuneka sinikele ingqalelo kumgangatho weendondo. Ngaphandle koko, izibuko zelanga azikwazi nje ukudlala indima ye-sunshade, kodwa nazo zingonakalisa amehlo. Ke kungakhathaliseki ukuba usebenzisa iipeni zelanga, kufuneka uqale ukhethe iiglasi zelanga ezifanelekileyo kwaye uzisebenzise ngokuchanekileyo.
Ingqokelela enkulu yengqiqo ekusetyenzisweni kwezibuko zelanga:
1. Ukunxiba ngokungafanelekanga izibuko zelanga kuqheleke kwizifo zamehlo. Musa ukunxiba iindondo zelanga ngeentsuku ezinamafu nangaphakathi.
2. Ukunxiba izibuko zelanga ngorhatya, ngokuhlwa, nokubukela umabonwakude kuya kwandisa umthwalo wohlengahlengiso lwamehlo, yaye kutyekele ekudinweni kwamehlo, ukungaboni kakuhle, ukungaboni kakuhle, ukuba nesiyezi nesiyezi.
3. Abantu abaneenkqubo zombono ezingafezekanga ezifana neentsana kunye nabantwana abafanelekanga ukugqoka iilensi zokudibanisa.
4. Xa ukunxiba ebusweni bezibuko zelanga kuchaphazele ukucaca, buyisela izibuko zelanga ngexesha.
5. Abantu abasebenzayo kwi-glare, abaqhubi, njl., bacetyiswa ukuba bakhethe izibuko zelanga ze-polarized; ngelixa ukwindawo yemetha, ayifanelekanga ukukhetha iiglasi zelanga ezitshintsha umbala.