Kodi nthawi zina mumakumana ndi kusintha pang'ono kwa maso anu, kusawona bwino, kapena kupweteka m'maso mwanu? Mwina dokotala wanu wakupemphani kuti muyesedwe ndi VEP. Ndizachilendo kumva mantha pang'ono komanso kufuna kudziwa kuti, "Kodi mayeso awa ndi chiyani?" Koma musadandaule, lero tikambirana mwachidule komanso mwaubwenzi za mayeso a VEP awa, zomwe amayang'ana, komanso momwe amachitidwira.
Mwachidule, kodi mayeso a VEP awa ndi otani?
Ganizirani maso anu ngati makamera awiri. Zimene makamera awa amaona, kutanthauza kuti, chidziwitso chowoneka, chiyenera kutumizidwa ku ubongo. Pokhapokha akatumizidwa ndi pomwe tingamvetse bwino chomwe chinthucho chili. Chifukwa chake, mayeso a VEP (Visual Evoked Potential) awa amagwiritsidwa ntchito kuti awone ngati njira yolumikizirana pakati pa maso anu ndi ubongo wanu ikugwira ntchito bwino.
Mwachidule, mayesowa amayesa mtundu wa chizindikiro chamagetsi chomwe gawo la ubongo wanu lokhudzana ndi masomphenya (visual cortex) limatulutsa mukayang'ana chithunzi chomwe chikuwonetsa, chomwe ndi chithunzi.
Ziwalo zonsezi ndi za njira yolumikizirana, kapena njira yowonera, pakati pa maso ndi ubongo:
- Maso: Kumene timaona zinthu.
- Mitsempha Yowona: Monga zingwe zomwe zimanyamula uthenga kuchokera m'maso kupita ku ubongo.
- Chiasm ya Optic: Malo apadera muubongo komwe ulusi wa mitsempha wochokera m'maso awiri umadutsa.
- Njira Yoyendera: Njira yotumizira uthenga kuchokera ku mitsempha ya maso kupita ku ubongo.
- Kuwala kwa Optic: Gawo lina la njira iyi.
- Cerebral Cortex: Gawo la ubongo lomwe pamapeto pake limagwiritsa ntchito chidziwitsochi ndikumvetsetsa, "Nayi mpando" kapena "Nayi amayi."
Ngati pali vuto laling'ono kapena cholepheretsa chilichonse panjira yonseyi, chidzaonekera modabwitsa mu mayeso a VEP.
Nchifukwa chiyani dokotala angalimbikitse mayeso a VEP?
Pali zifukwa zingapo zomwe mayeso a VEP angapangidwire. Makamaka, dokotala wanu angakulamulireni mayesowa ngati pali kukayikiridwa kuti muli ndi vuto lachipatala lomwe lingakhudze maso anu. Zingathandize kuzindikira vuto kapena kuthandiza kumvetsetsa momwe vuto lomwe lilipo kale lilili.
Onani tebulo ili m'munsimu kuti mudziwe matenda akuluakulu omwe mayesowa angathandize kuzindikira.
| Mkhalidwe/Choyambitsa | Kufotokozera kosavuta |
|---|---|
| Matenda a Optic Neuritis omwe amayamba chifukwa cha Multiple Sclerosis (MS) | Ichi ndi chifukwa chofala kwambiri choyezetsa VEP. MS ndi matenda omwe amakhudza dongosolo la mitsempha. Mu matendawa, mitsempha ya maso imatha kutupa, zomwe zimachedwetsa mauthenga ochokera m'diso kupita ku ubongo. |
| Glioma ya Mitsempha Yowoneka | Mtundu wa chotupa chomwe chimayamba pa mitsempha ya maso chingathe kusokoneza kutumiza kwa zizindikiro. |
| Kupsinjika kwa munda wowoneka | Njira yowonera iyi ikhoza kutsekedwa chifukwa cha matenda monga hydrocephalus kapena pituitary adenoma. |
| Kuvulala mutu kapena ubongo | Kuyesa kumeneku kumathandiza kuona ngati njira ya chizindikiro ichi yawonongeka chifukwa cha ngozi. |
| Matenda a Optic Neuropathy Oopsa | Mankhwala ena kapena poizoni monga carbon monoxide amatha kuwononga mitsempha ya maso. |
Chofunika kwambiri ndichakuti mayeso a VEP okha sazindikira matenda. Dokotala adzayerekeza zomwe mwapeza kuchokera ku mayesowa ndi zizindikiro zanu ndi zotsatira zina za mayeso kuti apeze yankho lomaliza.
Kodi mayesowa amagwira ntchito bwanji?
Iyi ndi njira yosavuta kwambiri komanso yopanda ululu. Tangoganizani kuti muli ndi masensa ang'onoang'ono omwe ali pamutu panu. Mu zamankhwala, timatcha ma electrode awa.
Amalumikiza ma electrode ang'onoang'ono ngati ma disc achitsulo awa kutsitsi lanu pamalo enaake. Kenako, mumakhala patsogolo pa chowunikira. Pa chinsalucho, mawonekedwe owunikira a checkerboard amaonekera ndipo amasowa.
Mukachiyang'ana, maso anu amaona chithunzicho, ndipo chidziwitsocho chimatumizidwa kudzera mu mitsempha ya maso kupita ku ubongo. Ubongo ukalandira chizindikiro chimenecho, ntchito yamagetsi imachitika pakati pa maselo a ubongo. Ma electrode omwe ali kumutu amayesa ntchito yamagetsiyo ndikuilemba pamakina. Kuyesa kumeneku nthawi zambiri kumachitika pogwiritsa ntchito makina a EEG (Electroencephalogram) omwe amalemba mafunde amagetsi a ubongo.
Makinawa amayesa nthawi yomwe ubongo unatenga kuti uyankhule ndi chithunzicho kuyambira pomwe diso linachiwona, komanso mphamvu ya yankholo. Yankho limenelo limalembedwa ngati mafunde. Katswiri amafufuza mafunde awa kuti aone ngati pali kuchedwa kapena zolakwika zilizonse.
Kodi mungakonzekere bwanji mayeso?
Izi sizikufuna kukonzekera kwambiri. Komabe, ndikofunikira kutsatira njira izi tsiku lisanafike mayeso:
- Sambani tsitsi lanu bwino ndipo lisungeni loyera. Sambani tsitsi lanu ndi shampu, tsukani bwino ndi madzi, ndipo liume.
- Musamapake mafuta, jeli, kapena mankhwala opopera tsitsi pa tsitsi lanu patsiku loyesa. Ngati muli ndi zinthu izi pa tsitsi lanu, ma electrode sadzatha kuzindikira bwino zizindikiro za ubongo.
- Dokotala wanu kapena chipatala chanu chidzakupatsani malangizo ena okhudza izi. Mvetserani zonse mosamala ndikutsatira. Musamaope kufunsa ngati muli ndi mafunso.
Kodi chimachitika ndi chiyani panthawi ya mayeso?
Mukalowa m'chipinda choyesera, simudzakumana ndi zoopsa zilizonse.
1. Choyamba, katswiri adzakupangitsani kukhala bwino pampando.
2. Kenako, ma electrode amamangiriridwa kumadera enaake a mutu wanu pogwiritsa ntchito guluu wapadera. Guluu uyu ukhoza kuchotsedwa mosavuta pambuyo pake.
3. Kenako, diso lanu limodzi lidzaphimbidwa ndi chigamba.
4. Mudzafunsidwa kuti mumvetse bwino momwe bolodi la chessboard limaonekera pazenera patsogolo panu.
5. Mayeso akangomalizidwa ndi diso limodzi, mayesowo amabwerezedwanso mofanana ndi diso linalo.
Mayeso onse angatenge pafupifupi mphindi 60. Simudzamva kupweteka kulikonse panthawi yonseyi.
Kodi lipoti la mayeso likuti chiyani?
Mafunde ochokera mu mayesowa amawunikidwa ndi katswiri wa mitsempha, yemwe amayesa zinthu monga nthawi yomwe ubongo umayankha chizindikiro chochokera m'diso (kuchedwa) ndi mphamvu ya yankho limenelo (kukula).
Mwachitsanzo, mu matenda monga Multiple Sclerosis (MS), sheath ya myelin yozungulira mitsempha imawonongeka, zomwe zimachepetsa liwiro lomwe zizindikiro zimayendera. Izi zingapangitse ubongo kutenga nthawi yayitali kuposa masiku onse kuti uyankhe mayeso a VEP (kuyankha mochedwa). Izi zingapatse dokotala chidziwitso chofunikira chokhudza matendawa.
Katswiri adzasanthula izi ndikupanga lipoti lathunthu, lomwe lidzatumizidwa kwa dokotala wanu. Dokotala wanu adzakufotokozerani lipotilo. Iye adzakuuzaninso ngati pakufunika mayeso ena, kapena njira zotsatirazi.
Uthenga Wopita Nawo Kunyumba
- Mayeso a VEP ndi mayeso otetezeka komanso osapweteka omwe amayesa liwiro ndi magwiridwe antchito a kulumikizana pakati pa maso ndi ubongo.
- Izi ndizofunikira kwambiri pozindikira matenda a mitsempha monga MS.
- Chinthu chofunika kwambiri chomwe mungachite tsiku lisanafike mayeso ndi kusunga tsitsi lanu loyera komanso lopanda mafuta ndi ma gels.
- Musadandaule ndi maganizo anu pa zotsatira za mayeso. Pitani kwa dokotala wanu kuti akupatseni kufotokozera bwino komanso kolondola.
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