Sei yeziso.

Yeziso, kana kuti nhengo nokuona, pasinei kwayo diminutive ukuru, ane chaizvo kunzwisisa anatomical marongerwo. Aregeredza, muviri uyu ane chimiro rinosvika, izvo zvisiri chaizvo vakakwana, sezvo ayo mugove inooneka pamberi ane curvature kupfuura yakavigwa neshure pamusoro. Izvi anosarudza kukura uye kusiyana maziso kwakasiyana-siyana. Nokuda convexity ari cornea Anterior-posterior muviri kupfuura saizi. Paavhareji, utano mukuru munhu, iye pedyo 24 mm. Transverse uye mira akabatana anenge kufanana: avhareji ukuru transverse akabatana weziso riri 23.6 mm uye 23.3 mm panguva tote.

Nemamiriro yeziso

The nhengo nechaanoona, pane vatatu zvikuru nevamwe kuti mabasa akasiyana mabasa.

1. External kana fibrous mumuhara. It akataura migove miviri, izvo chaizvo dissimilar anatomically. Kudeuka chikamu fibrous nguo ndokwaJehovha sclera, kana tunica albuginea, uye vamwe - the cornea. The sclera ndiyo jira zvachose vasiri segirazi, iro rine whitish Hue. Chaizvo nemhaka ruvara kwavo, yeziso, chidimbu opaque chikamu puroteni rakashevedzwa. In kurapwa tsika, sezvo sclera anogona kuziva siyana pathological ezvinhu zvinoitika muziso uye seboka. Saka, akatsvuka yeziso zvingaratidza rikwanise kuzvimba ari nhengo wokuratidzwa; conjunctivitis, keratitis, uveitis, etc. A yellowing tunica albuginea kunanga uchapupu chiropa chirwere - Hepatitis. Yeziso, izvo zvinoratidza kumberi uye cornea rinowanika munzvimbo ino kupendwa mu shava, girini kana zvitema. Zvisinei, ichi hachisi cornea uye Iris kunoonekwa kuburikidza nawo. The cornea zirokwazvo Hauoneki uye yakajeka, hapana midziyo ropa, chete nesumbu tsinga harinzwi kuubvumira kuva kupfuura vasanonoka chikamu muviri. Kana yeziso anomiririrwa ave chikamu zvikamu zvayo fibrous mumuhara, ipapo cornea nezvokuvandudzika asingasviki 16%.
2. Avhareji, kana choroid. Zviri yakabatana fibrous, asi kwete yose, asi chete zvayo scleral chikamu. Apo sclera unopinda cornea, vascular nzira anosiiwa nayo uye riri munzvimbo dzokuzororera dzaiva kubva cornea. The pakati goko kusiyanisa zvikamu vatatu: Iris, ciliary (ciliary) muviri , uye choroid. Iris ndipiyona diaphragm, iyo anoita luminous nekubudisa richisvika pasi meso ake, ake svetovosprinimayuschim zvivako. regulator basa anotora mboni, izvo zvinogona kuwedzera kana chiedza kushaikwa uye yakamanikana - wayo zvakawandisa. The ciliary muviri inodikanwa generating kugara intraocular mvura inodiwa nokuti zvokudya ziso, kwokuramba nayo inzwi. The choroid, kana choroidal, aimiririra vascular rezvebonde unokupai dzomunyika hurongwa ziso.
3. Internal kana the retina. Izvi zvinonyanya kukosha chikamu nhengo zvaakaratidzwa kuti anoonawo kubatidza uye transmits vakatodzidza kuona mashoko ari pamusoro kuuropi cortical hurongwa. The retina - dzakaonda chaizvo uye yaigona rinenge riri kazhinji vanozivikanwa munzvimbo huru vaviri ciliary rine masero kusiyaniswa zvikuru, uye Manyiminya basa umo masero aya. Kuparadzana kwavo (kuenzana mutsetse) unogona kuonekwa zvinenge kuongorora akadai tsikloskopiya kana vakaongorora fundus.

Yeziso kunze anoshongwa mukati vitreous, iyo rinopa maitiro woita chimiro uye rinobatanidzwa refraction uye izvo, riri munyaya accommodative pezvakaitwa uye refraction chiedza matanda.