Asinganzwisisiki zvokurwara - heterochromia ziso

Heterochromia ziso chokuita ruvara usage kutyora - rwe-melanin. Vanhu vane chirwere ichi ane zvakasiyana Ruvara Iris. Melanotropin kemikari kuti anogadzirwa pituitary shwanu, anopinda muropa uye cerebrospinal fluid anopararira yose muviri, saka yokudzora pasi biosynthesis kuti melanin, pamuviri. Zvadaro kemikari Morekuru cytocidal peptide hydrolases. Naizvozvo, kana kuti kutyora biosynthesis kuti melanin, melanotropin uye anovandudza heterophthalmia. Zvinofanira akati kuti wevasungwa kuti melanin, anosarudza kuti ruvara kwemaziso. Ruvara Iris kwemaziso hwakada kufanana ruvara rweganda uye bvudzi. Pane mhando mbiri chikuru Iris - chiedza (kunyanya yebhuruu-pfumbu noruvara siyana) uye mashava (rima nechiedza mashava). It hwakagadzwa kuti zvachose kufanana irises zvakafanana vanhu hakuwaniki (kureva localization uye mumisasa kuti ruvara).

Heterochromia ziso kunogonawo kubva depigmentation. Vanamazvikokota vakawanda vari kuti vanodavira kuti depigmentation chaiye achiumbwa somugumisiro chinopedza pezvakaitwa vari Iris. Chinokosha kukura pameso heterochromia iri yedzinza. Muchiitiko chino, ziso rimwe richava yababa vake mavara, uye wechipiri - mai.

Usakanganwa kuti maziso heterochromia kukura nokuda dzakasiyana-siyana dzakasiyana zvirwere (iritis, yemaziso, choroidal siderosis, ropa, etc.). Pakutanga, muchiitiko ichi, musiyano iri Ruvara Iris anonzi mumwe pachena zviratidzo. Zvisinei, zvinokosha chirwere panzvimbo kudzidza zvakawanda hwakadzama.

Heterochromia maziso rakakamurwa mhando nhatu: secretory, zvakakwana, nechepakati. A maitiro chinoratidza secretory heterochromia ndechokuti vaviri mavara varipo vari Iris. Kana zvakakwana heterochromia maziso zvakasiyana mavara murume. Kana nechepakati heterochromia Iris ane anopfuura maviri mavara. Achitaura iyo, mumwe anomira kureva ruvara, pova rin'i kumativi mboni.

Somugumisiro ophthalmic tsvakurudzo, yakanga yakati kuti vanhu nechirwere heterochromia ziso, tsanga, uye kazhinji akanyorwa cyclites. Heterochromia zvakafanana kazhinji kuchengetwa zvose chiedza takangwaririra tsvukuruka, uye tine rima takangwaririra brunettes. Vamwe vanyori vanoti kuti zvokurwara uyu zvikuru chinoremedza varwere rwebhuruu takangwaririra. Mune zvimwe zviitiko, heterochromia vanhu akacherekedza pamwe muduku, vamwe - Varwere kuziva chokwadi ichi chete vakura. Heterochromia kazhinji zvakanyorwa varwere vane makore 20 kusvika 45 makore.

Heterochromia pamwe neurogenic etiology muzviitiko zvose pamwe kunowanzoitika basa kwemaziso dzinopenya, pasina chero mhando deposits pamusoro pemvura cornea, dzisavhiringidza pamusoro vitreous uye izvo. Nemaziso kuongororwa padzakacherechedza kuderera stromal ruvara wevasungwa zvichienzaniswa nevamwe ziso. Panyaya iyi, iyo pigmentation pakati Iris ndiyo yunifomu yose nhengo dzayo. Miti iyi inozivikanwa nokuvapo heterochromia tsitsi tsinga paresis parutivi apo Iris iri rakabuda ruvara. Kugadzirwa neurogenic heterochromia chokuita zvakawedzera kushatirwa pamusoro remuromo tsitsi ganglion. Zvanzi tsinga kunokanganisa kukura Iris yayo ruvara. kuchinja izvi anoratidza kwakakomba dysfunctionality iri midziyo yacho huta uye vascular nehurongwa. chirwere ichi ikabuda albinism kufanira dzidzo uye mesodermal retinal ruvara. Heterochromia hakugumiri ziso rimwe mesodermal Iris ruvara. Chimwe musiyano kubva albinism heterochromia ndechokuti haina kupa yematambudziko uye ndiye mhuri, nhaka anomaly ruvara biosynthesis mumuviri.