Kodi diso.

Diso, kapena chiwalo m'maso, ngakhale kukula kwake diminutive, ali ndi zovuta dongosolo anatomical. Mochuluka, thupi lili ndi mawonekedwe a dera, amene si wangwiro kwambiri, monga kuonekera pamaso gawo ake ali kupindika kuposa chimabisika pamwamba kumbuyo. Mfundo imeneyi ndiyo kukula ndi kuchuluka maso malangizo osiyana. Chifukwa convexity wa diso zapambuyo-zapambuyo thupi la kukula yaikulu. Pa avareji, wathanzi wamkulu anthu, iye ali pafupi ndi mamilimita 24. Yopingasa ndi ofukula olamulira pafupifupi zofanana: pafupifupi kukula kwa olamulira yopingasa wa diso 23,6 mamilimita ndi 23,3 mamilimita pa choimirira.

Kapangidwe ka mwana wa m'diso la

Limba la masomphenya, pali atatu akulu chipolopolo kuti ntchito osiyana.

1. Kunja kapena fibrous m'chimake. Dzina magawo awiri, ndiwo yosiyana kwambiri anatomically. Mbali yaikulu ya malaya fibrous uli sclera, kapena tunica albuginea, ndi zina - cha diso. The sclera mwamtheradi si mandala nsalu, amene ali azioneka yochitidwa. Ndendende chifukwa cha mtundu wawo, diso, makamaka gawo opaque mapuloteni ndi umatchedwa. Zochita matenda, monga sclera akhoza kudziwa zinthu zosiyanasiyana pathological wochitika mmaso ndipo thupi lonse. Choncho, redness a mwana wa m'diso la zingasonyeze pachimake kutupa mu chiwalo cha masomphenya: conjunctivitis, keratitis, uveitis, etc. A chikasu tunica albuginea mozungulira umboni wa matenda chiwindi - kutupa. Diso, lomwe limasonyeza kutsogolo ndi diso amapezeka mu malo utoto bulauni, zobiriwira kapena buluu. Komabe, ichi si cha diso ndi Iris kumaoneka mu izo. The diso ndi colorless mwamtheradi ndi mandala, palibe Mitsempha yekha m'bulu wa molekezera mitsempha, kuwalola kukhala mbali yovuta kwambiri kwa thupi. Ngati mwana wa m'diso la ankayimiridwa ngati kuchuluka kwa mbali za m'chimake fibrous, ndiye diso chimachititsa zosakwana 16%.
2. Avereji, kapena choroid. Ndi pafupi fibrous, koma osati mu uthunthu wake, koma mbali scleral. Kodi sclera zipita diso, ndi njira mtima ndi wosiyana ndi ali spaced kwa diso ndi. Chigoba pakati kusiyanitsa mbali atatu: Iris, ciliary (ciliary) thupi , ndi choroid. Iris akutumikira monga zakulera, amene nthawi kamwazi wowala akuyesetsa kwambiri mu maso ake, svetovosprinimayuschim nyumba yake. yang'anira ntchito amatenga mwana, amene angathe kukuza pamene kuwala akusowa ndi yopapatiza - owonjezera ake. The ciliary thupi ndi zofunika kwa kupoletsa zonse intraocular madzimadzi wofunikila kudyetsa diso, chosafuna izo kamvekedwe. The choroid, kapena choroidal, ankaimira mtima maukonde kupereka ndondomeko mkati mwa diso.
3. Internal kapena diso. Izi ndi mbali yofunika kwambiri pa limba la masomphenya amene amatipatsa kuyatsa ndi transmits anapeza zambiri zithunzi ku ubongo nyumba yokhudza kotekisi. Diso - woonda kwambiri ndi wosakhwima minofu, omwe kawirikawiri kuzindikiridwa m'madera chachikulu ziwiri: ciliary amene ali maselo kwambiri kusiyanitsidwa ndi ntchito kuwala imene maselo amenewa. alekane (losongoka mzere) Tingaone mu njira ya kufufuzidwa monga tsikloskopiya pamene ayesedwa fundus.

Diso zipolopolo popanda mwa vitreous, amene amaupereka khalidwe anamaliza mawonekedwe ndi zochitika pa refraction ndi mandala, zomwe zimafunika njira accommodative ndi refraction wa matabwa kuwala.