Qhov sib txawv tseem ceeb ntawm cycloplegia thiab mydriasis yog tias cycloplegia yog qhov muag mob vim yog tuag tes tuag taw ntawm cov leeg ciliary ntawm lub qhov muag, ua rau tsis muaj chaw nyob, thaum mydriasis yog qhov muag mob vim qhov kev loj hlob ntawm cov leeg. cov tub ntxhais kawm vim li cas tsis cuam tshuam rau theem ntawm lub teeb hauv ib puag ncig, ua rau muaj kev puas tsuaj rau retina.
Qhov muag yog lub cev ntawm peb lub cev uas ua rau peb pom. Nws yog ib lub cev muaj zog uas ua rau lub teeb thiab tso cai rau pom kev. Cov cell photoreceptive (rod thiab cone cells) tuaj yeem ntes pom lub teeb thiab xa cov ntaub ntawv no mus rau lub hlwb. Lub qhov muag muaj ib tug xov tooj ntawm cov khoom uas muaj xws li cornea, iris, tub kawm ntawv, lens, retina, macula, optic paj hlwb, choroid thiab vitreous. Cycloplegia thiab mydriasis yog ob yam mob ntsig txog qhov muag.
YCycloplegia yog dab tsi?
Cycloplegia yog qhov muag mob vim qhov ua rau tuag tes tuag taw ntawm cov leeg ciliary ntawm lub qhov muag, ua rau tsis muaj chaw nyob. Cov leeg ciliary yog cov nqaij leeg hauv lub cev ciliary ntawm lub qhov muag. Nws yog ib cheeb tsam ntawm lub qhov muag uas pab kom pom tseeb. Nrog kev pab los ntawm cov leeg ciliary, lub lens ntawm lub qhov muag tuaj yeem flattened los yog sib npaug. Cov txheej txheem no tso cai rau tib neeg tsom mus rau cov khoom nyob deb thiab ze. Cov leeg no kuj tswj tau ib feem ntawm cov kua dej hauv lub qhov muag uas tswj cov kua dej kom zoo. Cov leeg ciliary txuas rau lub qhov muag lo ntsiab muag los ntawm ligaments hu ua zonules lossis suspensory. Thaum cov leeg ciliary tau so, cov ligaments raug rub kom nruj. Qhov no flattens lub lens ntawm lub qhov muag. Nrog lub qhov muag flattened, tib neeg tuaj yeem tsom mus rau cov khoom nyob deb. Thaum cov leeg ciliary tau cog lus, cov ligaments yog slackened, thiab lub lens raug thawb mus rau hauv cov duab sib npaug. Qhov no tso cai rau tib neeg tsom mus rau cov khoom nyob ze.
Daim duab 01: Cycloplegia hauv qhov muag
Caus thiab Cov tsos mob ntawm Cycloplegia
Cov tsos mob ntawm cycloplegia muaj xws li mob taub hau, mob qhov muag, nyeem ntawv nyuaj, thiab qhov muag tsis pom kev. Cycloplegia rhuav tshem qhov zoo-tuning ntawm qhov muag pom. Cycloplegia tuaj yeem yog ib nrab lossis ua tiav. Nws tuaj yeem tshwm sim los ntawm cov kab mob xws li syphilis, diphtheria, articular rheumatism, locomotor ataxia, thiab ntshav qab zib. Ib qho tseem ceeb gene uas cuam tshuam nrog cycloplegia yog IRX6. Kev kuaj mob ntawm cycloplegia nyob ntawm cov tsos mob tas li. Eserine lossis Diocarpine tuaj yeem siv los kho tus mob no. Cov tshuaj no cog lus rau cov menyuam kawm ntawv thiab txhawb nqa qhov chaw nyob.
Mydriasis yog dab tsi?
Mydriasis yog ib qho mob qhov muag uas tshwm sim vim qhov loj ntawm cov menyuam kawm ntawv vim li cas tsis cuam tshuam rau qib ntawm lub teeb hauv ib puag ncig. Nws ua rau kev puas tsuaj rau retina. Nyob rau hauv mydriasis, lub pupillary lub teeb reflex ploj lawm. Ib tug menyuam kawm ntawv mydriatic yuav nyob twj ywm loj heev txawm nyob rau hauv ib qho chaw kaj lug, uas yuav ua rau lub retina puas los ntawm lub hnub ci.
Daim duab 02: Mydriasis cuam tshuam txog Kev puas tsuaj rau Retina
Caus thiab Cov tsos mob ntawm Mydriasis
Mydriasis tuaj yeem tshwm sim rau ntau yam. Anticholinergics tau sau tshuaj, raug mob rau lub qhov muag, nce oxytocin, siv yeeb tshuaj (cocaine, ecstasy, thiab lwm yam), cranial paj hlwb, thiab mob hlwb raug mob yog ob peb lub laj thawj rau mydriasis. IP3R1 noob hloov tuaj yeem ua rau tus mob no. Cov tsos mob yuav muaj xws li cov menyuam kawm ntawv dilated, qhov muag tsis pom kev, constriction nyob ib ncig ntawm lub hauv pliaj, mob taub hau, kiv taub hau, thiab khaus qhov muag. Cov kws kho mob ib txwm ua qhov kev kuaj pom qhov muag thiab kuaj qhov muag kom kuaj pom tus mob no. Tsis tas li ntawd, cov tsos mob ntawm tus mob no tuaj yeem txo qis los ntawm kev zam lub hnub ncaj qha, siv cov looj tsom iav dub, thiab zam kev nyeem ntawv kom ze rau qhov muag. Raws li kev kho mob, nws yuav pom zoo kom opaque contact lo ntsiab muag lossis looj tsom iav dub. Pilocarpine yog ib yam tshuaj uas feem ntau siv los ua kom cov menyuam muaj zog. Qee zaum, nws yuav xav tau kev phais.
Dab tsi zoo sib xws ntawm Cycloplegia thiab Mydriasis?
- Ob qho xwm txheej muaj feem cuam tshuam rau qhov muag.
- Lawv yog ob qho teeb meem tsis pom kev.
- Cov xwm txheej no tuaj yeem tshwm sim los ntawm kev siv tshuaj.
- Lawv tuaj yeem kho tau los ntawm kev phais.
Qhov txawv ntawm Cycloplegia thiab Mydriasis yog dab tsi?
Cycloplegia yog qhov muag uas ua rau tuag tes tuag taw ntawm cov leeg ciliary ntawm lub qhov muag, ua rau tsis muaj chaw nyob. Ntawm qhov tod tes, mydriasis yog qhov muag qhov muag uas tshwm sim vim qhov loj ntawm cov menyuam kawm ntawv vim li cas tsis cuam tshuam nrog cov theem ntawm lub teeb hauv ib puag ncig, ua rau muaj kev puas tsuaj rau lub retina. Yog li, qhov no yog qhov sib txawv tseem ceeb ntawm cycloplegia thiab mydriasis. Ntxiv mus, cycloplegia yog vim muaj qhov tsis xws luag hauv lub cev ciliary ntawm lub qhov muag. Hauv qhov sib piv, mydriasis yog vim qhov tsis xws luag hauv cov menyuam kawm ntawv ntawm qhov muag.
Cov hauv qab no infographic tabulates qhov sib txawv ntawm cycloplegia thiab mydriasis.
Summary – Cycloplegia vs Mydriasis
pom qhov muag tsis pom kev, me ntsis, ci ntsa iab hmo ntuj, thiab teeb ci ntsa iab yog qhov tsis txaus siab ntawm qhov muag. Txhua tus tuaj yeem ua rau tsis muaj mob lossis ua cim ntxov ntawm tus kab mob qhov muag. Cycloplegia thiab mydriasis yog ob yam mob ntsig txog qhov muag. Cycloplegia yog vim qhov tuag tes tuag taw ntawm cov leeg ciliary ntawm lub qhov muag, uas ua rau tsis muaj chaw nyob. Ntawm qhov tod tes, mydriasis yog vim qhov nthuav dav ntawm cov menyuam kawm ntawv vim tsis muaj feem cuam tshuam nrog cov theem ntawm lub teeb hauv ib puag ncig uas ua rau muaj kev puas tsuaj rau lub retina. Yog li, qhov no yog cov ntsiab lus ntawm qhov txawv ntawm cycloplegia thiab mydriasis.
