Video: Pupillary teb txhais li cas?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Cov tub ntxhais kawm teb yog ib physiological lus teb uas txawv qhov loj ntawm menyuam kawm ntawv , ntawm optic thiab oculomotor cranial paj. Kev txwv lus teb (miosis), yog qhov nqaim ntawm menyuam kawm ntawv , uas tej zaum yuav tshwm sim los ntawm scleral buckles lossis tshuaj xws li opiates/opioids lossis tshuaj tiv thaiv ntshav siab.
Ib yam li ntawd, nws yog nug, dab tsi yog cov lus teb rau cov menyuam kawm ntawv rau lub teeb?
Cov pupillary lub teeb reflex (PLR) lossis photopupillary rov ua dua yog a rov ua dua uas tswj txoj kab uas hla ntawm menyuam kawm ntawv , hauv lus teb mus rau qhov siv zog (luminance) ntawm teeb uas ntog rau ntawm cov qog ntshav liab ntawm cov retina nyob tom qab ntawm lub qhov muag, yog li pab hauv kev hloov pauv ntawm kev pom kev mus rau ntau qib ntawm qhov pom kev/
Ib tug kuj yuav nug, yuav ua li cas tshwm sim yam tsis muaj cov lus teb rau menyuam yaus? Tsis muaj nws, we yuav mus dig muag. Yog tias tsis muaj lub teeb txaus thiab cov tub ntxhais kawm tsis nthuav dav, ib qho me me ntawm lub teeb yuav dhau mus rau retina thiab cov duab yuav puas.
Tsis tas li ntawd, vim li cas peb thiaj kuaj xyuas cov lus teb rau cov menyuam kawm ntawv?
Koj cov menyuam kawm ntawv tswj tus nqi ntawm lub teeb uas nkag rau hauv koj lub qhov muag. Kuaj cov cov menyuam kawm ntawv yog ib feem tseem ceeb ntawm kev ntsuam xyuas qhov muag. Vim koj ua tsis muaj kev yeem tswj hwm koj li cov menyuam kawm ntawv , menyuam kawm ntawv Kev ntsuam xyuas tuaj yeem nthuav tawm cov teeb meem tshwm sim nrog koj lub paj hlwb thiab lwm yam teeb meem hauv koj lub cev.
Vim li cas thiaj li tseem ceeb rau kev kawm ntawv?
Cov menyuam tub teeb rov ua dua tso cai rau lub qhov muag los kho tus nqi ntawm lub teeb mus txog retina thiab tiv thaiv cov photoreceptors ntawm lub teeb ci. Lub iris muaj ob pawg ntawm cov leeg du uas tswj qhov loj ntawm qhov menyuam kawm ntawv (Daim duab 7.2).
Pom zoo:
Dab tsi txhais thawj tus neeg teb?
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