1.59 PC Blue Block Progressive Lens
Polycarbonate Lens txhais li cas?
Lub lens polycarbonate yog lub lens ua los ntawm cov thermoplastic polymer ntawm pawg carbonate.Nws yog kwv yees li 10 npaug ntawm qhov cuam tshuam ntau dua li cov yas lossis iav lo ntsiab muag.Polycarbonate lo ntsiab muag yog nyiam dua iav lo ntsiab muag los ntawm cov neeg siv tsom iav, cov neeg ncaws pob thiab lwm cov neeg siv qhov muag tiv thaiv vim nws lub teeb yuag, ultraviolet (UV) thiab cov khoom tiv thaiv.
Polycarbonate tau pom nyob rau xyoo 1953 thiab tau pib ua lag luam thawj zaug hauv xyoo 1958. Nws tau siv los ntawm cov neeg caij nkoj hauv xyoo 1970 los ua lub kaus mom hlau visors.Hauv xyoo 1980s kev lag luam pib siv polycarbonate los ua lwm txoj hauv kev rau cov qauv yas lossis iav tsom iav.Polycarbonate lo ntsiab muag yog ib qho kev xaiv ntse rau cov neeg ua haujlwm hauv kev ua kis las, chaw ua haujlwm txaus ntshai, hauv cov looj tsom iav thiab tshwj xeeb tshaj yog rau cov menyuam yaus.
Cov lo ntsiab muag yas ib txwm siv cov txheej txheem cam khwb cia, thaum polycarbonate pellets raug rhuab mus rau lub melting point thiab txhaj rau hauv lub lens pwm.Nws ua rau polycarbonate lo ntsiab muag muaj zog thiab muaj kev cuam tshuam ntau dua.Txawm li cas los xij, cov lo ntsiab muag no tsis khawb resistant thiab, yog li ntawd, yuav tsum muaj txheej tshwj xeeb.
Progressive Lenses yog dab tsi?
Cov lo ntsiab muag muaj txiaj ntsig yog qhov tseeb "multifocal" lo ntsiab muag uas muab qhov tsis muaj qhov kawg ntawm lub ntsej muag lub zog hauv ib khub ntawm cov iav.Optimum-vision khiav qhov ntev ntawm lub lens tso cai rau txhua qhov kev ncua deb kom meej:
Sab saum toj ntawm lub lens: zoo tagnrho rau kev pom kev deb, tsav tsheb, taug kev.
Nruab nrab ntawm lub lens: zoo tagnrho rau lub computer tsis pom kev, nruab nrab ntawm qhov deb.
Hauv qab ntawm lub lens: zoo tagnrho rau kev nyeem ntawv lossis ua tiav lwm yam haujlwm ze.
Leej twg xav tau Progressive Lenses?
Thaum peb muaj hnub nyoog, nws nyuaj rau saib cov khoom uas nyob ze ntawm peb lub qhov muag.Qhov no yog ib qho mob heev hu ua presbyopia.Cov neeg feem coob pom thawj zaug thaum lawv muaj teeb meem nyeem ntawv zoo, lossis thaum lawv mob taub hau tom qab nyeem ntawv, vim qhov muag tsis pom kev.
Progressives yog npaj rau cov neeg uas xav tau kev kho rau presbyopia, tab sis tsis xav tau ib tug nyuaj kab nyob rau hauv nruab nrab ntawm lawv lo ntsiab muag.
Cov txiaj ntsig ntawm Progressive Lenses
Nrog rau cov lo ntsiab muag zoo, koj yuav tsis tas yuav muaj ntau dua ib khub iav nrog koj.Koj tsis tas yuav pauv ntawm koj qhov kev nyeem ntawv thiab tsom iav tsis tu ncua.
Lub zeem muag nrog kev vam meej tuaj yeem zoo li ntuj.Yog tias koj hloov los ntawm kev saib ib yam dab tsi nyob ze rau qhov deb, koj yuav tsis tau "dhia" zoo li koj xav nrog bifocals lossis trifocals.
Qhov tsis zoo ntawm Progressive Lenses
Nws yuav siv sij hawm 1-2 lub lis piam los kho kom zoo.Koj yuav tsum tau cob qhia koj tus kheej kom saib tawm ntawm qhov qis ntawm lub lens thaum koj nyeem ntawv, saib ncaj nraim mus rau qhov deb, thiab saib qhov chaw nruab nrab ntawm ob qhov chaw rau nruab nrab los yog lub computer ua haujlwm.
Thaum lub sijhawm kawm, koj yuav hnov kiv taub hau thiab xeev siab los ntawm kev saib ntawm qhov tsis ncaj ncees lawm ntawm lub lens.Tej zaum kuj yuav muaj qee qhov cuam tshuam ntawm koj lub zeem muag peripheral.
Koj Xav Tau Ib khub ntawm Anti-blue Progressive Lenses
Raws li lub teeb xiav tam sim no nyob txhua qhov chaw, tiv thaiv xiav Progressive Lenses yog qhov zoo tagnrho rau kev ua si sab hauv tsev, xws li saib TV, ua si hauv computer, nyeem ntawv thiab nyeem ntawv xov xwm, thiab tsim nyog rau kev taug kev sab nraum zoov, tsav tsheb, mus ncig thiab hnav txhua hnub thoob plaws hauv lub xyoo.
