Kamwana - ndi chiyani ichi? Kufotokozera, kapangidwe, ntchito ndi mbali. pupillary anachita kuwala

Ngati kwa mphindi chabe kutseka maso anu kuti moyo mu mdima, inu kumvetsa kufunika kwa masomphenya anthu. Kodi anthu njakata amene atasiya kuona. Ndipo ngati maso - kalilole wa moyo, mwana - izi ndi zenera yathu dziko.

Kapangidwe ka diso

Thupi la munthu ndi chipangizo dongosolo kuwala. cholinga chake chachikulu - kusamutsa zithunzi mwa mitsempha chamawonedwe ku ubongo.

Diso ndi mawonekedwe a dera la, ili mu kanjira ndipo ali malaya atatu: fibrous, ndi retinal vasculature. Mkati ndi nthabwala amadzimadzi, mandala ndi thupi vitreous.

White gawo la mwana wa diso aphimbidwa ndi mucosa (sclera). Front gawo mandala wotchedwa diso, ndi mandala kuwala ndi lalikulu refractive mphamvu. Pansi ndi Iris kuti amachita ntchito ya chifundamtima.

The kamwazi kuwala zimaonekera pa chinthu pamwamba imagwera woyamba pa diso ndi refracted, umadutsa mwana wa mandala, amene alinso biconvex mandala ndi akulowa dongosolo kuwala kwa diso.

Mfundo ina pa njira ya fano looneka anthu - diso. Ndi chipolopolo maselo kuti ali tcheru kuwala: cones ndi ndodo. Retin chimakwirira pamwamba mkati diso kudzera ulusi mitsempha mwa mitsempha chamawonedwe transmits mudziwe kuti ubongo. Apa ndi pamene pali maganizo amalire ndi kuzindikira zimene anaona.

mwana ntchito

Pali mawu okuluwika otchuka a anthu, "chuma," koma anthu ochepa kwambiri masiku ano kudziwa kuti apulo amatchedwa mwana mu masiku akale. Mawu amenewa ntchito kalekale ndipo ndi mapulogalamu bwino mmene tiyenera kuchitira maso athu - ngati lofunika kwambiri ndi yokwera mtengo.

Wophunzira anthu olamulidwa ndi minofu ziwiri: sphincter ndi dilator. Iwo imayendetsedwa ndi osiyana magulu mitsempha a kachitidwe wachifundo ndi parasympathetic.

Kamwana - ndi zoona, otsegula kudzera amene kuwala akulowa diso. Iye amachita monga yang'anira ndi, tapering ku kuwala ndipo zambiri mwa kusowa kwake. Choncho, mwana wa diso amateteza diso ku amayaka ndipo bwino zithunzi acuity.

mydriasis

Zilibe linalake, pamene munthu wina kukodzedwa mwana? Izo zimatengera zinthu zambiri. Chilengedwe zachipatala, chotero chodabwitsa amatchedwa mydriasis.

Iwo likukhalira kuti ana osati anatani kuwala. kuwonjezeka awo akhoza zidzayambike ndi boma okondwa maganizo: chidwi amphamvu (kuphatikizapo kugonana), kuchangamuka, mumamva ululu ndi mantha.

zinthu pamwamba chifukwa mydriasis achilengedwe popanda okhudza acuity zithunzi ndi thanzi diso. Monga ulamuliro, monga boma la mwana wa akudutsa mwamsanga, ngati maziko maganizo akubwera kubwerera mwakale.

Mydriasis chodabwitsa khalidwe la munthu mu mowa kapena chomwa mankhwalawa kuledzera. Komanso, ana dilated zambiri amasonyeza poyizoni aakulu, monga botulism.

Pathological mydriasis zimachitika odwala ndi choipa ubongo zoopsa. Zonse ana dilated akusonyeza pamaso pa munthu ali chiwerengero cha matenda zotheka:

• khungu;
• migraine;
• ziwalo za oculomotor mitsempha ;
• encephalopathy;
• chithokomiro kukanika;
• Eddie syndrome.

Anthu ambiri akudziwa ku mafilimu amene okomoka ambulansi madokotala woyamba wa zonse anafufuza maso. pupillary anachita kuwala, komanso kukula awo akhoza kundiuza madokotala kwambiri. A kuwonjezeka pang'ono amasonyeza kukomoka osaya, pamene "galasi", pafupifupi maso wakuda chizindikiro chikhalidwe kwambiri.

corestenoma

Alakwitsa constricted mwana - chikhalidwe n'zosiyana mydriasis. Ophthalmologists kuzitcha izo miosis. kupatuka Izi zili zifukwa zingapo, mwina vuto lililonse zithunzi chilema, koma nthawi zambiri chifukwa kuwona dotolo yomweyo.

Akatswiri kusiyanitsa mitundu angapo mioza:

1. Zinchito, imene kuchepetsa ndi chifukwa cha zinthu zachilengedwe, monga kuyatsa osauka, boma tulo, khanda kapena ukalamba, hyperopia, chogwira ntchito mopitirira muyeso.
2. Medical miosis - kukonzekera phwando chifukwa chimene, kuwonjezera pa ntchito mfundo, zimakhudzanso ntchito minofu diso.
3. Manjenje - yodziwika ndi lathunthu kapena tsankho satha galimoto dilator.
4. Miosis kuyabwa - anati mu kuphipha wa sphincter lapansi. Amapezeka zotupa mu ubongo, kakhosi, encephalitis, komanso anthu akuvutika ofoola ziwalo ndi khunyu.
5. omangana chinzonono - kumachitika pa siteji iliyonse ya matenda, ngakhale mankhwala yake ali osowa kwambiri.

anisocoria

Malinga ndi kafukufuku, munthu aliyense chachisanu Padziko Lapansi ana zamitundu yosiyanasiyana. asymmetry iyi akutchedwa anisocoria. Nthawi zambiri kusiyana ndi negligible ndi looneka kokha maso, koma kusiyana Tingaone ndi apoyera. Lamulo pupillary awiri pa imeneyi asynchronously, ndi zina kukula zimasiyanasiyana yekha diso limodzi, pamene winayo amakhalabe n'kupuma.

Anisocoria ukhoza kukhala cholowa ndi zinazake. Mbali yoyamba, dongosolo ngati diso chifukwa chibadwa lachiwiri - ndi choipa kapena matenda.

Ana a diameters osiyana zimapezeka anthu odwala matenda amenewa:

• chamawonedwe mitsempha kuwonongeka;
• aneurysm;
• ubongo choipa;
• kutupa;
• matenda a ubongo.

Policoro

Wapawiri mwana - ochepa chabe mtundu wa kuvutika diso. Izi zotsatira chibadidwe otchedwa POLYCOR, yodziwika ndi awiri kapena kuposa mmodzi wa ana Iris.

Pali mitundu iwiri ya matenda: onama ndi owona. njira Zonama zikutanthauza kuti mwana chatsekedwa Kakhungu sanali uniformly, ndipo zikuoneka kuti mabowo ochepa. Pankhaniyi, anachita kuwala alipo imodzi yokha.

N'zoona POLYCOR kugwirizana ndi kudwala kwa chikho chamawonedwe. Mawonekedwe a ana si nthawi zonse chonse, pali maenje mu mawonekedwe a chowulungika ndi, dontho, ndi keyhole. Pothirirapo kuwala, ngakhale chitaperekedwa pali aliyense wa iwo.

Anthu ndi kudwala limeneli amakhala ndi mavuto osiyanasiyana, diso zosalongosoka amaona zikuipiraipirabe kuposa zachibadwa. Ngati chiwerengero cha ana ndi wamkulu kuposa 3, ndi lalikulu ndithu (2 mm kapena zambiri), mwana mpaka chaka, zikuoneka kukachititsa opaleshoni. Akuluakulu anaika atavala kukonza magalasi kukhudzana.

mbali zaka

Amayi ambiri achinyamata amaona kuti mwana dilated ana. Kodi Ndafunsa chifukwa cha mantha izi? Wakutali milandu - si koopsa, iwo akhoza zimayamba ndi kuyatsa osauka mu chipinda ndi makhalidwe a mantha dongosolo okonda. Powona chidole wokongola kapena mantha ndi zoopsa Barmaley mwanayo reflexively kuwonjezera ana, amene posachedwapa kubwerera mwakale kachiwiri.

Ngati vuto limeneli limapezeka nthawi zonse - imakhala nthawi kuwomba Alamu ndi kuchipatala mwadzidzidzi. Zimenezi zingasonyeze matenda a ubongo ndi owonjezera mogwirizana ndi katswiri sindizo ndendende wavulala.

pupillary anachita kusintha kuwala ndi zaka. Mu achinyamata, pali pazipita zotheka kutambasuka, monga kuyenera anthu achikulire amene nthawi zonse ana constricted - ndi zosinthika yachibadwa.