1.56 SF Flat Top Bifocal PGX HMC lens optical

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