1.499 1.56 umphezulu othe tyaba umjikelo ophezulu odityaniswe phezulu HMC 70/28mm i-bifocal lens eshushu ethengisa ilensi yamehlo

Ziziphi iiLensi zeBifocal kwaye zisebenza njani?

Kukho iinguqu ezininzi ezahlukeneyo zeelensi ezikhoyo namhlanje, uninzi lwazo zizalisekisa injongo enye okanye iinjongo ezininzi.Kwiposti yebhlog yale nyanga siza kuxoxa ngeelensi ze-bifocal, indlela ezisebenza ngayo, kwaye zeziphi iingenelo zazo kukuphazamiseka kokubona okwahlukeneyo.

Iilensi ze-Bifocal eyeglass ziqulathe amandla eelensi ezimbini ukukunceda ubone izinto kuyo yonke imigama emva kokuba uphulukene namandla okutshintsha ngokwendalo ukugxila kwamehlo akho ngenxa yobudala, ekwabizwa ngokuba yi-presbyopia.Ngenxa yalo msebenzi ukhethekileyo, iilensi ze-bifocal zidla ngokumiselwa kubantu abangaphezulu kweminyaka engama-40 ukunceda ukubuyisela ukuthotywa kwendalo kombono ngenxa yenkqubo yokuguga.

Nokuba sithini na isizathu sokuba ufuna ummiselo wokulungiswa kombono okufutshane, ii-bifocals zonke zisebenza ngendlela efanayo.Inxalenye encinci kwindawo engezantsi yelensi iqulethe amandla afunekayo ukulungisa umbono wakho okufutshane.Ilensi eseleyo iqhelekile yeyombono wakho womgama.Icandelo lelensi elinikelwe kulungiso olusondeleyo kumbono unokuba yenye yeemilo ezininzi:

• Isiqingatha senyanga — ikwabizwa ngokuba yi-flat-top, i-straight-top okanye i-D segment
• Icandelo elingqukuva
• Indawo emxinwa yoxande, eyaziwa ngokuba licandelo leribhoni
• Umzantsi ogcweleyo wesiqingatha se-bifocal lens ebizwa ngokuba yiFranklin, i-Executive okanye isimbo se-E

Ngokubanzi, xa unxibe iilensi ze-bifocal, ujonga phezulu kunye nomgama welens xa ugxile kumanqaku akude, kwaye ujonge phantsi kunye necandelo le-bifocal yelens xa ugxile kwizinto zokufunda okanye kwizinto ezingaphakathi kwe-intshi ezili-18 zamehlo akho. .Yiyo loo nto indawo esezantsi ye-bifocal yelensi ibekwe ukuze umgca owahlula amacandelo amabini uphumle kumphakamo ofanayo nowomntu onxibayo.Ukuba uyakholelwa ukuba iilensi ze-bifocal, okanye iilensi ezininzi eziqhubela phambili, inokuba lolona khetho lufanelekileyo lokuphazamiseka kombono wakho uze ungene kwiConvox Optical namhlanje kwaye abasebenzi bethu abanobubele nabanamava banokukunceda ukukukhokelela kukhetho olugqibeleleyo lwelensi kunye nezakhelo.