Zicabange uhamba emgwaqweni bese kuthi kungazelelwe uthuli lungene emehlweni akho. Ngaphambi kokuba nesikhathi sokucabanga, amehlo akho ayavaleka, akunjalo? Noma, lapho ukukhanya okukhulu kushaya amehlo akho ngokuzumayo, amehlo akho ayancipha ngokuzenzakalelayo. Wake wazibuza ukuthi lezi zinto zenzeka kanjani? Lokhu yilokho esikubiza ngokuthi ' i-eye reflexes' . Lokhu kufana nonogada emehlweni ethu abasivikela ngaphandle kokuthi sazi. Ake sixoxe ngalokhu kalula nangendlela enesizotha namuhla.
Ziyini ngempela lezi zici zokuzindla kwamehlo?
Kalula nje, ama-eye reflexes ayizimpendulo ezizenzakalelayo ezivikela amehlo ethu futhi zisisize sibone kahle. Akuyona into oyicabangayo, yenzeka ngokuzenzakalelayo. Izinto ezinjengokucwayiza, ukudabuka, kanye nendandatho emnyama yeso eshintsha umbala kuye ngokukhanya kulawulwa yilezi zimpendulo.
Konke lokhu kwenzeka ngenethiwekhi yezimpawu zemizwa ezihamba phakathi kobuchopho bethu namehlo ethu . Kufana nohlelo lwezingcingo ehhovisi. Uma iso lizwa okuthile okuyingozi noma okuhlukile, umyalezo uhamba ngemizwa uye ebuchosheni. Ubuchopho buphendula ngokuthumela umyalezo emuva esweni, buthi, "Kulungile, vala amehlo akho manje" noma "Khombisa izinyembezi." Lokhu kwenzeka ngokushesha kangangokuthi asinaso nesikhathi sokucabanga ngakho.
Kunezinhlobo ezintathu eziyinhloko zokusabela kwamehlo esikhuluma ngazo futhi esibhekana nazo njalo.
1. I-Corneal Reflex: Yilokhu okubangela ukuthi amehlo avaleke futhi kuphume izinyembezi.
2. I-Pupillary Reflex: Lokhu ukuvuleka kwe-pupillary yeso ngenxa yokukhanya.
3. I-Vestibulo-ocular Reflex: Lokhu kugcina umbono wethu uzinzile ngisho nalapho sinyakazisa amakhanda ethu.
Ake sibheke ngayinye yalezi ngokwehlukana.
Kungani amehlo evala uma into encane iwathinta? - I-Corneal Reflex
Lesi yisivikelo esiyinhloko seso lethu. Ingxenye esobala engaphambili kweso lethu ibizwa ngokuthi i-cornea. Le ngxenye ibucayi kakhulu. Ngisho noma into encane iyishaya, iyasabela ukuze iyivikele, ebizwa ngokuthi i-Corneal Reflex. Inezingxenye ezimbili eziyinhloko.
| Igama lesenzo se-reflex | Kwenzekani kanye nezibonelo |
|---|---|
| I-Corneal Blink Reflex | Amehlo avala ngokuzenzakalelayo lapho into ethile, njengengcosana yothuli noma isinambuzane esincane, ithinta iso noma iwela kulo. Lokhu kwenzeka ukuvikela amehlo ezintweni ezingena esweni. Futhi, lapho ukukhanya okukhulu okungazelelwe, njengokukhanya esithombeni, kushaya iso, amehlo avala ngokuzenzakalelayo ngenxa yalokhu kushukuma. |
| I-Reflex Yokuklebhula/Yokulala | Uma into efana nothuli noma uthuli ingena emehlweni ethu, izindlala zethu zezinyembezi zikhipha izinyembezi ngokushesha ukuze zihlanze. Kodwa lokhu akwenzeki nje kuphela uma into ingena emehlweni ethu. Izinyembezi zingaphuma nalapho sisika u-anyanisi ekhishini, lapho sibhekene nentuthu enamandla, lapho sibhekene nomoya onamandla, noma lapho sibhekene nokubanda. Lokhu kushukunyiswa kuyasebenza nalapho sibhekana nemizwa enamandla, njengalapho sijabule kakhulu noma sidabukile. |
Kalula nje, lokhu (i-corneal reflex) kuyindlela yokuqala yokuvikela iso ukuze livikeleke kunoma iyiphi ingozi yangaphandle engase ivele.
Kungani amehlo ami eba mancane uma ngiphuma ngaphandle futhi abe makhulu ebumnyameni? - I-Pupillary Reflex
Wake wema phambi kwesibuko wakhanyisa ithoshi esweni lakho? Uma wenza lokho, indilinga emnyama ephakathi kweso lakho, umfundi, iyancipha ngokuzumayo. Uma ususa ithoshi, iyanda kancane kancane. Lokhu yilokho esikubiza ngokuthi i-Pupillary Reflex . Inhloso yayo eyinhloko ukulawula inani lokukhanya okungena esweni. Kufana nomgodi ovulekayo ekhamera. Kunezinhlobo ezintathu ze-pupil reflexes.
Ukuphendula ekukhanyeni
Uma uphuma ngaphandle ngosuku olunelanga, kuba nokukhanya okuningi kakhulu okungena esweni. Lokhu kungalimaza izingxenye ezizwelayo ngaphakathi kweso. Ukuze kuvinjwe, umfundi uyancipha. Lokhu kubizwa ngokuthi i-Pupillary Light Reflex.
Ukuphendula ebumnyameni
Cabanga nje uya ebhayisikobho. Uma ungena, awuboni lutho, akunjalo? Kodwa ngemva kwesikhashana, indawo okuzungezile iqala ukubonakala kancane kancane. Okwenzekayo lapha ukuthi, ngoba sifuna ukubona ebumnyameni, umfundi omnyama uyavuleka ukuze kungene ukukhanya okuningi ngangokunokwenzeka. Lokhu kubizwa ngokuthi i-Pupillary Dark Reflex.
Ukusabela ebuhlungwini
Lokhu kuhlukile kancane. Uma uzwa ubuhlungu ebusweni noma entanyeni yakho, i-cilia yakho ingakhula ngokuzumayo ngenxa yalokho. Lokhu kubizwa ngokuthi i-Ciliospinal Reflex.
Ungawagcina kanjani amehlo akho egxile endaweni eyodwa ngisho nalapho uphendula ikhanda lakho? - I-Vestibulo-ocular reflex
Lokhu kuyamangalisa ngempela. Amakhanda ethu ahlala ehamba kancane ngaphandle kokuqaphela. Sihambisa amakhanda ethu lapho sihamba, sigijima, noma sigibela emotweni. Uma amehlo ethu ebehamba ngesikhathi esifanayo njalo lapho sihambisa amakhanda ethu, konke esikubonayo bekuyoba lufifi futhi kubonakale sengathi kuyajikeleza.
Kodwa lokho akwenzeki, akunjalo? Uma uhamba emgwaqweni ubheka uphawu esitolo, usengalubona kahle nangokuqhubekayo uphawu, noma ngabe unikina ikhanda lakho.
Isizathu salokhu yi -Vestibulo-ocular Reflex . Yilokhu ekwenzayo, lapho ikhanda lakho liphendukele kolunye uhlangothi, amehlo akho aya kolunye uhlangothi ukuze alilungise, agcine umbono wakho uqinile kulokho okubukayo. Lokhu kufana nobuchwepheshe bokuzinzisa isithombe ekhamera yevidiyo. Ngaphandle kwalokhu kuzinzisa, besingeke sikwazi ukubona izinto ngokucacile ngisho nalapho sihamba ngendlela evamile.
Ingabe kukhona okunye ukusabela esingazi ngakho?
Yebo, asiziboni eziningi zazo nsuku zonke, kodwa kunezinye izindlela eziningi ezibalulekile zokusabela ezenzeka emizimbeni yethu.
| Isenzo sokuzivumelanisa nezimo | Incazelo |
|---|---|
| I-Oculocardiac Reflex | Lokhu kukhethekile kancane. Leli yigama elinikezwe iqiniso lokuthi uma kukhona ingcindezi emehlweni ethu, ukushaya kwenhliziyo yethu kuyehla uma siphendula. Lesi simo sivame ukwenzeka ngesikhathi sokuhlinzwa kwamehlo. Kungenzeka futhi uma sishaywa ebusweni noma uma sinikwa umjovo wokubulala izinzwa. |
| I-Bell's Reflex (i-Palpebral Oculogyric Reflex / i-Bell's Reflex) | Uma ufaka amaconsi amehlo noma ama-contact lens emehlweni akho, amehlo akho ayaphenduka ngokuzenzakalelayo, akunjalo? Yilokho okubizwa ngakho lokhu kusabela. Kuqanjwe ngesimo esibizwa ngokuthi i-Bell's Palsy, esikhubaza imizwa yobuso okwesikhashana. |
Ingabe kufanele sikhathazeke ngalezi zindlela zokusabela?
Ngokuvamile, lezi zinzwa ziyazenzakalela, ngakho asicabangi kakhulu ngazo ekuphileni kwethu kwansuku zonke. Uma nje zisebenza kahle futhi ngendlela efanele, asizizwa sinezinkinga.
Kodwa-ke, uma kukhona ubuthakathaka noma ukungajwayelekile kulezi zinzwa, kungaba uphawu lwesifo sezinzwa noma enye inkinga yezempilo. Yingakho odokotela behlola lezi zinzwa ngesikhathi sokuhlolwa kwezinzwa.
Uma ucabanga,
- Kubonakala sengathi kukhulu kakhulu ukuthi amehlo ami abe luhlaza okwesibhakabhaka uma ngiphuma.
- Ngizwa ushintsho oluthile embonweni wami, umuzwa ofiphele.
- Akuzizwa sengathi kuyinto evamile, njengokuthi “kukhona okungahambi kahle” emehlweni.
Uma ubona noma yiziphi izinguquko ezinjengalezi, ungazinaki. Bonana nodokotela wakho ngokushesha ukuze uthole iseluleko. Kubalulekile futhi ukuhlolwa kwamehlo njalo. Ngaleyo ndlela, uma kunenkinga, ingatholakala kusenesikhathi.
Umlayezo Wokuya Nawe Ekhaya
- Ukusabela kwamehlo kuyinqubo yemvelo evikela amehlo ethu futhi inikeza umbono ocacile.
- Imisebenzi yabo eyinhloko ukuvala amehlo, ukukhiqiza izinyembezi, ukushintsha umbala we-iris ngokuya ngokukhanya, nokugcina umbono uzinzile lapho ikhanda linyakaza.
- Konke lokhu kulawulwa izimpawu zemizwa phakathi kobuchopho namehlo.
- Uma ubona noma yiziphi izinguquko ezingavamile emehlweni akho noma ekuboneni, kubalulekile ukufuna iseluleko sezokwelapha ngokushesha ngaphandle kokusishaya indiva.
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