Amalensi ezibuko alungisa amaphutha e-refractive ngokugoba (refracting) ukukhanya njengoba edlula kulensi. Inani lekhono lokugoba ukukhanya (amandla ilensi) elidingekayo ukuze kuhlinzekwe ukubona kahle liboniswa emyalezweni wombukwane onikezwe udokotela wakho wamehlo.
Amaphutha e-refractive namandla amalensi adingekayo ukuze uwalungise akalwa ngamayunithi abizwa ngokuthi ama-dioptres (D). Uma unombono omfushane kancane, incwadi kadokotela yelensi yakho ingase ithi -2.00 D. Uma une-myopic kakhulu, ingase ithi -8.00 D.
Uma ungaboni kahle, udinga amalensi "plus" (+), ashubile phakathi nendawo futhi azacile ekugcineni.
Ingilazi evamile noma amalensi epulasitiki amanani aphezulu wokungaboni ngaso linye noma ukubona isikhathi eside angaba ugqinsi futhi asinde.
Ngenhlanhla, abakhiqizi badale izinhlobonhlobo zezinto ezintsha zepulasitiki "zenkomba ephezulu" ezigoba ukukhanya ngokuphumelelayo.
Lokhu kusho ukuthi impahla encane ingasetshenziswa ngelensi enenkomba ephezulu ukulungisa inani elifanayo lephutha le-refractive, okwenza amalensi epulasitiki anenkomba ephezulu abe mancane futhi abe lula kunengilazi evamile noma amalensi epulasitiki.
Izinzuzo zamalensi anenkomba ephezulu
Mncane
Ngenxa yekhono lawo lokugoba ukukhanya ngokuphumelelayo, amalensi anenkomba ephezulu yokungaboni ngaso linye anemiphetho emincane kunamalensi anamandla afanayo kadokotela enziwe ngezinto ezivamile zepulasitiki.
Okulula
Amaphethelo azacile adinga i-lens encane, enciphisa isisindo sonke samalensi. Amalensi enziwe ngepulasitiki enenkomba ephezulu alula kunamalensi afanayo enziwe ngepulasitiki evamile, ngakho-ke kulula kakhulu ukuwagqoka.
Futhi amalensi amaningi anenkomba ephezulu nawo anomklamo we-aspheric, owanika iphrofayili encane, ekhangayo futhi enciphisa ukubukeka okukhulisiwe okubangelwa ama-lens avamile emibhalweni eqinile yokubona isikhathi eside.
Izinketho zamalensi anenkomba ephezulu
Amalensi epulasitiki anenkomba ephezulu manje ayatholakala ezinhlobonhlobo zezinkomba eziphindaphindayo, ngokuvamile asukela ku-1.60 kuya ku-1.74. Amalensi anenkomba ye-refractive engu-1.60 & 1.67 angaba mancane okungenani ngamaphesenti angu-20 kunamalensi epulasitiki avamile, futhi u-1.71 noma ngaphezulu ngokuvamile angaba mncane ngamaphesenti angu-50.
Futhi, uma sikhuluma nje, uma inkomba iphezulu, izindleko zamalensi ziphezulu.
Imithi yakho ye-spectacle iphinde inqume ukuthi yiluphi uhlobo lwenkomba ephezulu ongalufuna ngelensi yakho. Izinto zenkomba eziphezulu kakhulu zisetshenziswa ngokuyinhloko emibhalweni enamandla kakhulu.
Iningi lamadizayini nezici zamalensi adumile anamuhla - okuhlanganisa i-Dual Aspheric, Progressive, Bluecut Pro, Prescription Tinted, kanye namalensi e-photochromic ahlanganisa i-Spin-coating— atholakala ezintweni ezinenkomba ephezulu. Siyakwamukela ukuze uchofoze emakhasini ethuhttps://www.universeoptical.com/armor-revolution-product/ukuze uhlole imininingwane eyengeziwe.