Zokugula Engaqondakali - heterochromia iso

Heterochromia iso elihlobene ne-ukwephulwa sombala zamagama - melanin. Abantu nalesi sifo babe lowehlukile iris. i-hormone Melanotropin olukhiqizwa indlala pituitary ingena egazini cerebrospinal fluid, zibhebhetheka wonke umzimba, ngaleyo ndlela elawula biosynthesis melanin emzimbeni. Khona-ke ama-hormone i-molecule cytocidal peptide hydrolases. Ngakho-ke, uma kokunikezwa kwe-biosynthesis melanin melanotropin futhi ithuthukisa heterophthalmia. Kumele ukuthi lokuhlushwa melanin inquma umbala amehlo. Umbala iris samehlo ihlobene eduze ibala lesikhumba nezinwele. Kunezinhlobo ezimbili eziyinhloko iris - ukukhanya (ikakhulukazi oluhlaza-grey ne shades ehlukahlukene) kanye brown (amnyama nokukhanya brown). It sekutholakele ukuthi kuba ngokuphelele irises ezifanayo ube uhlobo lomuntu efanayo alikho (ie kwasendaweni okuhlushwa sombala).

Heterochromia iso Ungase futhi umphumela depigmentation. Izazi eziningi kukhona oyikholelwayo Owadala depigmentation angempela ngenxa izinqubo esiwohlozayo e iris. Isici esibalulekile ekuthuthukiseni emehlweni heterochromia kuyinto ufuzo. Kulokhu, omunye neso kuyoba imibala kayise, kanti eyesibili - unina.

Ungakhohlwa ukuthi amehlo heterochromia eba ngenxa ezihlukahlukene nezifo ezahlukene (iritis, ukufiphala kwamehlo siderosis choroidal, ukopha, njll). Uma uthi nhlá, kulesi simo, umehluko umbala iris ubhekwa izimpawu ezicacile. Nokho, isifo eziyisisekelo isethwe ku isifundo olunemininingwane ethe xaxa.

Heterochromia amehlo zihlukaniswe izinhlobo ezintathu: secretory, ephelele, emaphakathi. Isici nobuntu heterochromia secretory ukuthi imibala emibili zikhona iris. Uma sekuphelile heterochromia emehlweni ezahlukene imibala indoda. Lapho emaphakathi heterochromia iris has imibala engaphezu kwemibili. Ekhuluma ngalo, umuntu ema umbala evelele, ukwakha sazungeza lo umfundi.

Ngenxa yalokho zocwaningo amehlo, yaphawula ukuthi abantu ukuthi nginesifo heterochromia iso, ale nkinga, futhi cyclites ngokuvamile eqoshiwe. Heterochromia ngokuvamile ngokulinganayo waphawula kokubili brunettes ukukhanya uneso ezimhlophe futhi babe amnyama okotshani. Abanye abalobi baphikisa ngokuthi lokhu zokugula kuyinto namanje kwande iziguli blue okotshani. Kwezinye izimo, heterochromia abaningi bamake nge zisencane, abanye - Iziguli nithole leli qiniso kuphela lapho usukhulile. Heterochromia ngokuvamile ezilotshwe iziguli abaneminyaka engu-20 kuya ku-45.

Heterochromia nge omsakazo neurogenic kuzo zonke izimo ephelezelwa umsebenzi evamile emehlweni elikhanyayo, ngaphandle kwanoma yiluphi uhlobo imali phezu cornea, ingaphazamisi we Vitreous kanye lens. luhlolo ezincane Kutholwe ukwehla stromal sombala okuhlushwa uma kuqhathaniswa nezinye iso. Kulokhu, lo lesikhumba iris kuyinto iyunifomu kuzo zonke izingxenye zawo. Lolu hlobo libhekene khona heterochromia nozwela ezinzwa paresis ohlangothini lapho iris is ezishintshe umbala. Kutfutfukiswa heterochromia neurogenic elihlobene ne ukucasuka okwandisiwe wesibeletho ganglion nozwela. Ngakho wathi ezinzwa kuthinta ukuthuthukiswa iris futhi sombala yayo. Lezi zinguquko kubonisa dysfunctionality sína apharathasi izinhlelo sezinzwa futhi semithambo. Lesi sifo eba imfundo albino nokuhlukumeza mesodermal sombala ngwengwzi. Heterochromia alinganiselwe eyodwa iso mesodermal iris sombala. Omunye umehluko kusuka albino heterochromia ukuthi akukuniki yezinkinga futhi umndeni, lezinceku anomaly sombala biosynthesis emzimbeni.