Yuav ua li cas bifocal hu ua haujlwm?

Video: Yuav ua li cas bifocal hu ua haujlwm?

2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44

Bifocal contact lo ntsiab muag feem ntau muaj ob daim ntawv sau tshuaj (lossis 'lub zog') hauv tib lub lens. Ob daim ntawv sau tshuaj yog siv los kho qhov pom kev ze thiab pom kev deb. Ib lub zeem muag lo ntsiab muag lo ntsiab muag yuam kom koj lub qhov muag saib mus deb thiab ze zog ib txhij.

Tib neeg tseem nug, nws siv sijhawm ntev npaum li cas los siv rau kev sib tham bifocal?

Cov neeg mob feem ntau kawm paub siv lawv multifocal contact lo ntsiab muag tsis pub dhau rau lub lis piam, tab sis, thiab ua zoo heev nrog lawv.

ua li cas bifocal hu nyob hauv qhov chaw? Bifocal contact lo ntsiab muag tsuas yog muaj raws li cov pa roj nkag tau yooj yim. Cov no kev sib cuag zoo li bifocal cov tsom iav tsom iav; daim ntawv sau tshuaj nyob nrug deb nyob rau ib nrab ntawm lub lens thiab daim ntawv yuav tshuaj nyob ze yog nyob rau ib nrab. Lub hauv qab ntawm lub lens yog flattened rau khaws nws in qhov chaw ntawm qhov muag.

Hauv qhov no, puas yog cov iav qhov muag sib txuas zoo?

Muaj tsis muaj nyuaj thiab ceev txoj cai. Tab sis, feem ntau, aspheric multifocal contact lo ntsiab muag nyiam mus ua hauj lwm zoo tshaj rau me me mus rau me ntsis presbyopia, thiab concentric lossis segmented multifocal hu feem ntau muaj kev vam meej ntau dua rau presbyopia.

Tus nqi hu rau bifocal ntau npaum li cas?

Yog tias koj tus kws kho mob qhov muag pom zoo thiab sau ntawv pov tseg bifocal contact lo ntsiab muag , kwv yees ib-lub thawv nqi rau cov iav no yog $ 50 txog $ 70 (zoo ib yam li nqi ntawm pov tseg toric kev sib cuag ). Yog li ntxiv, ib xyoos ib zaug tsom iav nqi ntawm $ 500 txog $ 700 tsis txawv yog tias koj hnav cov iav txhua hnub thiab hloov lawv txhua ob lub lis piam.

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