Izibuko ezibizayo - inkokhiso yemfashini noma ngempela indlela yokuvikela elangeni? Ingabe kufanele wonge ezingilazini zelanga? Ososayensi benze izivivinyo bathola ukuthi amalensi ashibhile ayingozi empilweni.
Izibuko zelanga ezishibhile zingase zibukeke zibiza, kodwa umbuzo uwukuthi, uma zizinhle, kungani zishibhile kangaka? Ochwepheshe abavela eBritish Standards Institute benza ucwaningo olungajwayelekile: bathenga amapheya ayi-15 ezingilazi ezishibhile futhi bathola ukuthi yiziphi izinkinga ezingafihlwa ngemuva kwamalensi abo amnyama.
Kuyadingeka ukuvikela emisebeni ye-ultraviolet hhayi esikhumbeni kuphela, kodwa namehlo. Nokho, akuzona zonke izibuko ezikwazi ukubhekana nalo msebenzi.
Ngakho-ke, izibuko zelanga ezishibhile ezincane ezingase zibangele ukuhlukana kwamehlo kanye nekhanda elibuhlungu. Kwezinye izibuko, kwatholakala okuthiwa ama-prism aqondile kumalensi. Lezi ngezinye izikhathi zisetshenziselwa imithi, kodwa zinqunywe ngokuqinile ngokuvumelana nencwadi ye-ophthalmologist. Ukuthi la ma-lens angena kanjani kumafreyimu ezingilazi ezijwayelekile akucaci. Nokho, lezi akuzona zonke izingozi. Ngaphandle kwekhanda elibuhlungu, izibuko zelanga zingadala izifo ezimbi kakhulu. Funda kabanzi
Kungcono ukuthenga ingilazi eyodwa ebizayo kunamapheya amabili ezishibhile.
Ukuhlolwa kwezibuko zelanga ezikhethekile zokushayela kubonise ukuthi izibonelo eziningi zinamalensi amnyama kakhulu. Futhi, ochwepheshe bamangala lapho bethola ukuthi ezingilazini eziningi, amalensi angakwesokudla nesobunxele adlulisa amanani ahlukene okukhanya. Ochwepheshe bafinyelela esiphethweni sokuthi izibuko ezinjalo zingaholela hhayi kuphela ekuphathweni kwekhanda, kodwa futhi ezinkingeni ezimbi kakhulu, isibonelo, ku-astigmatism.
Isiphetho: kungcono ukuthenga izibuko zelanga ezibizayo nezisezingeni eliphezulu kunamapheya amaningana ashibhile futhi konakalise ukubona kwakho.
Ochwepheshe baseBrithani batusa ukuthi lapho uthenga izibuko zelanga, hlola ukumaka kwe-CE, okuthi, ngendlela, kuyimpoqo emikhiqizweni ethengiswa kulo lonke elase-European Community.
Ngendlela, izibuko zelanga ziyi-accessory eyintandokazi yosaziwayo engabasizi kuphela kodwa nakuzo izintatheli.