Cov iav tsom iav tuaj ntau yam.Qhov no suav nrog lub qhov muag pom ib leeg nrog ib lub zog lossis lub zog dhau ntawm tag nrho lub lens, lossis lub lens bifocal lossis trifocal nrog ntau lub zog ntawm tag nrho lub lens.
Tab sis thaum ob qhov tom kawg yog cov kev xaiv yog tias koj xav tau lub zog sib txawv hauv koj lub lo ntsiab muag kom pom cov khoom nyob deb thiab ze, ntau lub lo ntsiab muag multifocal yog tsim los nrog cov kab pom sib cais qhov sib txawv ntawm cov tshuaj.
Yog tias koj xav tau lub lens tsis muaj kab ntau rau koj tus kheej lossis koj tus menyuam, lub lens ntxiv ntxiv yuav yog qhov kev xaiv.
Cov lo ntsiab muag niaj hnub niaj hnub, ntawm qhov tod tes, muaj qhov sib luag thiab zoo sib xws ntawm cov lens sib txawv.Hauv qhov kev nkag siab no, lawv tuaj yeem raug hu ua "multifocal" lossis "varifocal" lo ntsiab muag, vim tias lawv muab tag nrho cov txiaj ntsig ntawm cov lo ntsiab muag qub bi- lossis trifocal yam tsis muaj qhov tsis yooj yim thiab qhov tsis zoo ntawm cov tshuaj pleev ib ce.
Cov txiaj ntsig ntawm Progressive Lenses
Nrog rau cov lo ntsiab muag ua tau zoo, koj yuav tsis tas yuav muaj ntau dua ib khub iav nrog koj.Koj tsis tas yuav hloov 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 saib ib yam dab tsi nyob ze rau ib yam dab tsi nyob deb, koj yuav tsis tau txais "dhia" zoo li
koj xav tau bifocals lossis trifocals.Yog li yog tias koj tsav tsheb, koj tuaj yeem saib ntawm koj lub dashboard, ntawm txoj kev, lossis ntawm ib qho kev kos npe nyob deb nrog kev hloov pauv.
Lawv zoo li tsom iav tsis tu ncua.Nyob rau hauv ib txoj kev tshawb no, cov neeg uas hnav tsoos bifocals tau muab cov lo ntsiab muag mus sim.Tus kws sau ntawv txoj kev tshawb fawb tau hais tias feem ntau ua qhov hloov mus rau qhov zoo.
Yog tias koj muaj txiaj ntsig zoo, kev ua tau zoo thiab kev tsim kho tshiab koj tau tuaj rau qhov chaw zoo.
Index & Khoom Muaj
 Khoom siv | NKJ-55 | Polycarbonate | MR-8 | MR-7 | Qauv: MR-174 |
 Refractive Index | 1.56 ib | 1.59 ib | 1.60 ib | 1.67 ib | 1.74 ib |
 Abbe nqi | 35 | 32 | 42 | 32 | 33 |
 Specific Gravity | 1.28g / cm33 | 1.20g / cm33 | 1.30g / cm33 | 1.36g / cm33 | 1.46 g / cm²3 |
 UV Block | 385nm ua | 380nm ua | 395nm ua | 395nm ua | 395nm ua |
 Tsim | SPH | SPH | SPH/ASP | ASP | ASP |
 Muaj Coatings | HC/HMC/SHMC | HC/HMC | SHMC | SHMC | SHMC |
Leej twg siv Lenses Progressive?
Yuav luag txhua tus neeg uas muaj teeb meem tsis pom kev tuaj yeem hnav cov lo ntsiab muag no, tab sis lawv feem ntau xav tau los ntawm cov neeg muaj hnub nyoog 40 xyoo uas muaj presbyopia (farsightedness) - lawv qhov muag plooj thaum lawv ua haujlwm ze li kev nyeem ntawv lossis xaws.Cov lo ntsiab muag muaj txiaj ntsig tuaj yeem siv rau cov menyuam yaus, ib yam nkaus, txhawm rau tiv thaiv kom tsis txhob muaj myopia (qhov ze ze).
Cov Tswv Yim rau Kev Kho Kom Zoo Rau Cov Lens Progressive
Yog tias koj txiav txim siab sim lawv, siv cov lus qhia no:
Xaiv lub khw muag khoom kho qhov muag zoo uas tuaj yeem coj koj los ntawm cov txheej txheem, pab koj xaiv lub thav duab zoo, thiab xyuas kom meej tias cov lo ntsiab muag zoo kawg nkaus nyob nruab nrab ntawm koj ob lub qhov muag.Kev txhim kho tsis zoo yog ib qho laj thawj vim li cas tib neeg tsis tuaj yeem hloov mus rau lawv.
Muab koj tus kheej ib lossis ob lub lis piam los kho lawv.Qee tus neeg yuav xav tau ntev li ib hlis.
Xyuas kom koj nkag siab koj tus kws kho qhov muag cov lus qhia txog kev siv lawv li cas.
Hnav koj cov lo ntsiab muag tshiab kom ntau li ntau tau thiab tsis txhob hnav koj lwm cov iav.Nws yuav ua rau kev hloov kho sai dua.