20/20 kev pom kev yog ib lo lus siv los qhia qhov pom kev pom ib txwm muaj (qhov pom tseeb lossis qhov pom tseeb ntawm qhov muag) ntsuas ntawm qhov deb ntawm 20 ko taw. Yog tias koj muaj 20/20 lub zeem muag, koj tuaj yeem pom meej ntawm 20 ko taw dab tsi yuav tsum tau pom nyob deb li ntawd. … Muaj 20/20 lub zeem muag tsis tas txhais tau tias koj muaj lub zeem muag zoo tag nrho.
Vim li cas lawv thiaj hu 20/20 yog toog?
Raws li American Optometric Association, 20/20 lub zeem muag piav qhia qhov pom tseeb lossis ntse ib tus neeg lub zeem muag yog li cas- tseem hu ua kev pom kev pom. Thaum ntsuas qhov pom kev pom, thawj tus lej piav qhia qhov deb npaum li cas koj sawv ntawm daim duab qhov muag, yog li thawj 20 txhais tau tias koj sawv 20 taw deb.
txhais li cas kom muaj 20 25 pom?
A 20/25 kev pom yog ntsuas qhov pom kev pom. Qhov no txhais tau hais tias ib tug neeg muaj peev xwm pom tau meej ib yam khoom los ntawm 20 ko taw thaum tus neeg nruab nrab tuaj yeem pom ntawm 25 ko taw. Txawm tias tsis zoo tag nrho, qee cov neeg uas muaj qhov muag pom 20/25 tsis xis nyob thiab lawv xaiv hnav cov tsom iav kom raug.
Yog 20/25 qhov pom zoo lossis qhov tsis zoo?
Yuav ua li cas Kev Pom Tsis Zoo? Thaum 20/20 lub zeem muag raug suav tias yog tus qauv, nws tseem ceeb heev kom paub tias qhov pom kev tsis zoo yog dab tsi. Yog tias koj yuav tsum muaj qhov pom kev pom ntawm 20/25, feem ntau koj yuav tsis xav tau tsom iav lossis lwm cov lo ntsiab muag kho. Cov lo ntsiab muag kho yuav tsis hloov koj lub zeem muag ntau lossis txhim kho koj lub neej zoo.
Tus lej pom kev zoo yog dab tsi?
20/20 kev pom kev yog hu ua tus qauv, lossis tus neeg "ib txwm" pom li cas. Qhov no txhais tau hais tias, thaum koj sawv 20 ko taw deb ntawm daim duab qhov muag, koj pom tias tus neeg ib txwm yuav tsum pom dab tsi.
