Maziso Edu Akanaka Anopinda Muchikati cheBurin Yedu
The optic chiasm isiri yakagadzirwa ne-X yakagadzirwa nekuyambuka kwemagetsi emagetsi muuropi. Iko tsvina inobatanidza uropi kumeso.
Kune vazivi vezvinyorwa, optic chiasm inofungidzirwa kuva inoshanduka pakushanduka-shanduka. Inofungidzirwa kuti kuyambuka uye kusaputika maziso emagetsi anokonzera kufamba kwep optic chiasm yakagadzirwa nenzira yakadaro yekubatsira mu binocular vision uye kushanda kweziso-ruoko.
Anatomy yeOptic Chiasm
Pane optic chiasm, nerve fibers kubva kubva hafu ye retina imwe neimwe inodarika ichienda kune rumwe rutivi rwechoro. Uturu kubva kune imwe hafu ye retina inoenda kune rumwe rutivi rweuropi. Nokuda kwekugadzirisa uku, imwe hafu yeuropi inogamuchira zviratidzo zvinoonekwa kubva pane zvinoonekwa maziso ose.
Zvirwere zveOptic Chiasm
Kune huwandu hwehutano hwakanyanya kupfuura hunogona kuchinja optic chiasm. Izvi zvinosanganisira:
- zvinokonzera kupisa sezvakaita multiple sclerosis
- zvirwere zvakadai sechirwere chetachiona
- bhendi (kwete-kenza) matumire uye cysts
- maronda ane kenza
- vascular (blood vessel) zvinetso
Nzira yekuti Pituitary Adenoma inobata Optic Chiasm
Chirwere chinowanzosavhiringidza optic chiasm ndechepituitary adenoma. Pituitary adenomas inobata maronda. Muzviitiko zvizhinji, hazvina matanho zvachose, asi pane dzimwe nguva, dzinogona kukanganisa maonero, dzimwe nguva zvichikonzera kurasikirwa nekuona. Sezvavanokura muhukuru, pituitary adenomas inogona kuisa dambudziko kune zvivako zvakakosha mumuviri, zvakadai semagetsi emagetsi.
Kuisa mhirizhonga pamagetsi e-optic kunogona kukonzera upofu, saka zvakakosha kuti vanachiremba vemaziso vaone mishonga yepituitary vasati vakonzera kukanganisa kwemaonero.
Iko plandishi gland yakaenzana nehukuru hwebhinzi uye yakabatanidzwa nechepasi hweuropi mushure mekuma kwenzvimbo. inogara pasi pasi pe optic chiasm.
Kunyange zvazvo zviduku, pituitary inodzora kuchengetedzwa kwemarudzi akawanda emarudzi ehomoni. Inobatsira kuchengetedza kukura nekugadzirisa uye inotungamirira zvipembenene zvakawanda, nhengo, uye mahomoni. Kuchinja mune mahomoni kunogona kuchinja zvikuru mumitumbi yedu.
Kunze kwekuona kuchinja kwakadai sekuratidzwa kaviri , maziso emawere , uye kurasikirwa kwenyika, pituitary adenomas zvinogona kukonzera zviratidzo zvinotevera:
- Musoro wemusoro musoro
- Nausea kana kurutsa
- Shanduka mupfungwa yekunhuwa
- Kuita zvepabonde kusagadzikana
- Kuora mwoyo
- Unxplained weight rinoshanduka
- Shanduka mukutengesa kana kuenda kumwedzi kwokutanga
Chikonzero nei zvirwere zveOptic Chiasm Zvingave Zvakaoma Kuona
Apo chirwere kana chironda chinokanganisa mishonga ye optic vasati yasvika optic chiasm muuropi, kukanganisa mune zvakaratidzwa kucharatidza muziso rimwe chete uye kunogona kukanganisa rose rose reziso iroro. Vanhu vanotambura kubva kune rumwe rutivi rwakaremara dzimwe nguva havazvioni kusvikira ziso rimwe rakafukidzirwa. Izvi ndechokuti, kana maziso ose ari maviri akasvinudzwa, mazamu anoonekwa ane ziso rimwe nerimwe achavhara chirema.
Kana chirwere chacho chikabata turtic tract mushure mechiasm, munhu wacho achava nechiremera pane zvaanoona mumaziso maviri, asi chiremera chichachinja chikamu chakafanana chemaziso.
> Sources:
> Kidd, D. The optic chiasm. Handb Clin Neurol. 2011; 102: 185-203.
> O'Connell JEA. Maitiro e optic chiasma uye mazita eHemianopia. Nyaya yeNeurology, Neurosurgery, uye Psychiatry . 1973; 36 (5): 710-723.
> Prasad, Sashank. Zvinetso zvinotarisa zvinokonzerwa nemakumbo ekudzivirira. Brigham nevakadzi vechipatara. Webhu. 2016.