1.499 1.56 phezulu okuyindilinga phezulu okuhlanganiswe phezulu kwe-HMC 70/28mm i-bifocal lens eshisayo ethengisa ilensi yokubona

Ayini ama-Bifocal Lens futhi Asebenza Kanjani?

Kunezinhlobonhlobo eziningi ezahlukene zamalensi ezitholakalayo namuhla, eziningi zazo zifeza inhloso efanayo noma izinhloso eziningi.Engosini ye-blog yale nyanga sizoxoxa ngamalensi e-bifocal, ukuthi asebenza kanjani, nokuthi ziyini izinzuzo zawo ngokuphazamiseka okuhlukahlukene kokubona.

Amalensi e-bifocal eyeglass aqukethe amandla amabili amalensi ukukusiza ukuthi ubone izinto kuwo wonke amabanga ngemva kokulahlekelwa amandla okushintsha ngokwemvelo ukugxila kwamehlo akho ngenxa yobudala, eyaziwa nangokuthi i-presbyopia.Ngenxa yalo msebenzi othize, amalensi e-bifocal ngokuvamile anikezwa abantu abangaphezu kweminyaka engama-40 ukusiza ukunxephezela ukonakala okungokwemvelo kombono ngenxa yenqubo yokuguga.

Kungakhathaliseki ukuthi kungani udinga incwadi kadokotela yokulungiswa kombono oseduze, ama-bifocals wonke asebenza ngendlela efanayo.Ingxenye encane engxenyeni engezansi yelensi iqukethe amandla adingekayo ukuze ulungise umbono wakho oseduze.Ilensi esele ngokuvamile ingeyokubona kwakho kude.Ingxenye yelensi enikelwe ekulungisweni kokubona eduze ingaba ngomunye wemimo eminingana:

• Ingxenye yenyanga — ebizwa nangokuthi i-flat-top, i-straight-top noma ingxenye ka-D
• Ingxenye eyindilinga
• Indawo engunxande emincane, eyaziwa njengengxenye yeribhoni
• Ingxenye engezansi egcwele yelensi ye-bifocal ebizwa ngokuthi i-Franklin, i-Executive noma isitayela sika-E

Ngokuvamile, lapho ugqoke amalensi e-bifocal, ubheka phezulu kanye nengxenye yebanga le-lens lapho ugxile emaphoyinti akude, futhi ubheka phansi nangengxenye ye-bifocal yelensi lapho ugxile ezintweni zokufunda noma ezintweni ezingaphakathi kwamayintshi angu-18 emehlweni akho. .Kungakho ingxenye engezansi ye-bifocal yelensi ibekwa ukuze umugqa ohlukanisa amasegimenti amabili uhlale ekuphakameni okufanayo nejwabu leso eliphansi lomuntu oyifakile.Uma ukholelwa ukuthi amalensi e-bifocal, noma amalensi amaningi athuthukayo, angaba yinketho efanele yokonakala kwakho kombono bese ungena ku-Convox Optical namuhla futhi abasebenzi bethu abanobungane nabanolwazi bangakusiza ekukuqondiseleni ekukhetheni okuhle kwamalensi namafreyimu.