Indlela Yokugula Isifo Segciwane Kungashukumisa Amehlo Akho
Isifo se-sickle isifo segazi esibangelwa ukuguqulwa kwezakhi zofuzo. Abantu abane-cellle ye-sickle bahlakulela amangqamuzana egazi abomvu ahlotshaniswa ne-crescent uma kunciphisa amazinga e-oxygen. La maseli egazi abomvu agwetshiwe aqina futhi awageleza kalula ngemithambo encane yegazi. Lapho amangqamuzana egulisa ukuvimba ukugeleza kwegazi emzimbeni, ubuhlungu obunzima buyenzeka, ngenxa yezicubu ezibulawa negazi.
Abantu abanesifo se-sickle bane-anemia eqondile ngenxa ye-hemoglobin engavamile emaqenjini abo egazi. I-Hemoglobin iyiprotheni ekhona amangqamuzana egazi abomvu esiza ukuthwala oksijini kuwo wonke umzimba.
Cell Sickle kanye Amehlo Akho
Isifo segciwane lesifo singathinta izitho eziningi emzimbeni, kufaka phakathi amehlo. Izimpawu zeso zingafaka okulandelayo:
- Ukubomvu kweso kubangelwa imithwalo yegazi ene-comma
- Ukwehla kwesisu
- I-Atrophy noma ukwehlisa iris
- Ukukhula komkhumbi wegazi omusha (neovascularization) we-iris
- Izitsha zegazi ezinjenge-nyoka
- I-retinal hemorrhage
- Ama-pigmentations e-periphery ye-retinal
- I-Glistening ifaka imali e-retina
- I-Salmon patch (i-orange-pink pink patches) e-retina
- I-Angioid streaks
- I-Retinal blood isitsha segazi
- I-neovascularization yokubuyisela
- Iqoqo lokutakula
Enye yezinkinga ezivamile zamehlo ezihambisana nesifo se-sickle cell "isondlo esinjengobanikazi besolwandle" se-new retinal blood expansion vessel.
Uhlobo lwama-sea of vessels lumelela umzamo wamehlo wokuvuselela i-retina ene-oxygen. Lokhu kubonakala sengathi into enhle, kodwa izitsha zegazi ezintsha ezikhula zibuthakathaka futhi zingakwazi ukuvuza amanzi namanzi. Bangakwazi futhi ukudala i-traction ku-retina futhi mhlawumbe bayidabule.
Uma isifo se-sickle cell sigubuzela iso, iba yilapho i-retinopathy yesiguli esilula kakhulu.
Lokhu kubiza kungabangela ukubola okukhulu kwesibindi nesilondolozi sokubutha. Umgomo wezobuchwepheshe we-retinal ukuvimbela noma ukuqeda i-neovascularization ye-retinal ngaphambi kokuthi ifike ekupheleni kokubhujiswa.
Okufanele Ukwazi NgeSilly Cell kanye Amehlo Akho
Ukuhlolwa kwezilanga okuphelele kufanele kuqale kungakapheli iminyaka eyi-10 ubudala. Ucwaningo lubonisa ukuthi ukugula kwe-cellle ye-sickle kungase kuqale kulowo nyaka. Ukuhlolwa kweso kufanele kube ukuhlolwa okuhloswe kahle kwe-retina futhi kuphindwe njalo njalo eminyakeni emibili. Kusukela eneminyaka engama-20, ukuhlola kwamehlo wonyaka kufanele kwenziwe.
> Umthombo:
> Ukwengezwa kokubuyekezwa kwe-Optometry, i-Handbook of Ocular Disease Management, Edition 13. 15 Apreli 2011, iphe. 62A-65A.