Video: Dab tsi yog suav tias yog qhov ze heev?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Kho: LASIK; Tsom iav; Hu rau lo ntsiab muag
Kuj paub, qhov nruab nrab zesighted tshuaj yog dab tsi?
Yog koj maj mam qhov muag (nrog ib daim ntawv yuav tshuaj ntawm -1.50 lossis -2.00 D, piv txwv) koj yuav pom zoo heev ntawm ib txwm nyeem nrug ntawm 14 mus rau 16 ntiv tes ntawm koj lub ntsej muag. Tab sis yog tias koj siab heev qhov muag (cia hais tias -5.00 D lossis siab dua), koj yuav tsum nqa cov khoom kom ze rau koj lub qhov muag kom pom tseeb.
Ib yam nkaus, koj yuav ntsuas qhov muag tsis pom kev li cas? Ib qho "ntxiv" (+) kos npe ua ntej ntawm tus lej txhais tau tias koj pom kev deb, thiab "rho tawm" (-) kos npe txhais tau tias koj yog qhov muag . Cov lej no sawv cev rau diopters, chav siv rau ntsuas kev kho, lossis tsom lub zog, ntawm lub lens koj lub qhov muag xav tau. Diopter feem ntau yog luv luv "D."
Tsis tas li lo lus nug yog, puas pom ze ze zuj zus ntxiv nrog hnub nyoog?
Cov duab tsom mus rau pem hauv ntej ntawm retina, lub teeb pom kev zoo ntawm koj lub qhov muag, tsis yog ncaj qha rau ntawm retina. Koj lub qhov muag tau ntev heev sai thiab ua rau mob hnyav qhov muag , feem ntau yog cov hluas lossis cov neeg laus thaum ntxov. Hom ntawm qhov muag ua tau zuj zus deb mus rau neeg laus.
Kuv yuav ua li cas kom tsis pom kev deb tuaj zuj zus?
Hnav tshwj xeeb uas tsim los tiv thaiv lub lens zoo li khaws cia thaum koj tsaug zog, tshem tawm thaum koj tau nce, thiab koj tuaj yeem pom yam tsis muaj tsom iav lossis iav qhov muag! Kev tshawb fawb tau ua pov thawj tias Ortho-K muaj txiaj ntsig zoo ntawm kev ua kom qeeb qeeb qhov muag ( nearsightedness )!
Pom zoo:
Dab tsi yog qhov zoo tshaj plaws suav suav?
Suav Teb Zoo: Cov Plooj Pob Zeb Tshaj Plaws Hauv Ntiaj Teb 1 Qing Dynasty Porcelain: $ 84 lab. 2 Pob Zeb thiab Pob Zeb Dawb: $ 21.6 lab. 3 Jihong Porcelain: $ 10 lab. 4 Cov Ntshav Liab Pob Zeb Liab: $ 9.5 lab. 5 Joseon Porcelain: $ 1.2 lab
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