Video: Dab tsi yog Disorders ntawm refraction thiab chaw nyob?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Hauv cov teeb meem refractive, lub teeb rays nkag mus rau hauv lub qhov muag tsis yog tsom rau ntawm retina, ua rau pom qhov muag tsis pom. Cov duab ntawm lub qhov muag los yog pob kws los yog hnub nyoog -Txoj kev sib tw nruj ntawm lub lens tuaj yeem txo qis lub zog ntawm lub qhov muag.
Nyob rau hauv txoj kev no, dab tsi yog hom refractive yuam kev?
Refractive yuam kev txhais tau hais tias cov duab ntawm koj lub qhov muag tsis khoov lub teeb kom raug, ua rau pom qhov muag plooj. Lub ntsiab hom refractive yuam kev yog myopia (nearsightedness), hyperopia (farsightedness), presbyopia (tsis pom kev ze nrog hnub nyoog), thiab astigmatism.
Kuj Paub, dab tsi yog qhov qub refractive mob ntawm lub qhov muag?
| Refractive yuam kev | |
|---|---|
| Tshwj xeeb | Ophthalmology |
| Cov tsos mob | Qhov muag tsis pom kev, ob lub zeem muag, mob taub hau, mob qhov muag |
| Hom | Nyob ze-sightedness, deb-sightedness, astigmatism, presbyopia |
| Diagnostic method | Kev kuaj qhov muag |
Tom qab ntawd, dab tsi yog qhov kev kuaj mob refraction?
A refraction Feem ntau qhov kev xeem yog ib feem ntawm kev kuaj qhov muag tas li. Nws kuj tseem yuav raug hu ua kev ntsuas qhov muag. Qhov kev sim no qhia rau koj tus kws kho qhov muag raws nraim li cov tshuaj koj xav tau nyob rau hauv koj lub tsom iav lossis qhov muag lo ntsiab muag. A refractive yuam kev txhais tau tias lub teeb tsis khoov kom zoo thaum nws hla dhau lub lens ntawm koj lub qhov muag.
Puas yog qhov yuam kev cuam tshuam yog kab mob?
A: A refractive yuam kev yog ib qhov muag heev tsis meej pem . Nws tshwm sim thaum lub qhov muag tsis tuaj yeem pom meej cov duab los ntawm lub ntiaj teb sab nraud. Qhov tshwm sim ntawm refractive yuam kev yog qhov muag tsis pom kev, uas qee zaum hnyav heev uas ua rau pom kev tsis pom kev.
Pom zoo:
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