Isizathu Esizuzwayo Sokuphulukisa
Isifo se-Norrie yisifo esiwuzuzile esiholela ekumpumputhe ngesikhathi sokuzalwa noma ngokushesha, ukulahlekelwa ukuzwa, nokulibaziseka kwentuthuko. Ukuguqulwa kwezakhi zegciwane le-NDP ku-X chromosome kubangela isifo se-Norrie. Izuzwe njengefa lephethini elixhumene ne-X . Ngenxa yalesi sizathu, isifo sikaNorrie sithinta kakhulu abafana. Ayaziwa ukuthi u-Norrie isifo kaningi kangakanani.
Izimpawu
Izimpawu zesifo se-Norrie zingabandakanya:
- ukuphuphutheka kokubili emehlweni ngesikhathi sokuzalwa noma ngokushesha
- abafundi bavela emhlophe uma kukhanya kukhanya kubo (leukocoria)
- Izingxenye zambala (irises) ezinemibala zingase zinciphise ngemva kokuzalwa
- Ama-Eyeballs angase ahlehle ngemuva kokuzalwa
- i-cloudiness kuma-lens yamehlo (i-cataracts)
- ukulahlekelwa ukuzwa okujulile kungase kuthuthuke ngokuhamba kwesikhathi
- ukulibaziseka kokuthuthukiswa kwamakhono amakhono njengokuhlala phansi nokuhamba
- ubumnene ukulinganisa ukuphuza kwengqondo
Isifo se-Norrie singase sibangele nezinkinga ngokusakaza, ukuphefumula, ukugaya, kanye nokwehla.
Ukuxilongwa
Uma izimpawu zengane zikhomba isifo se-Norrie, udokotela we-eye ( ophthalmologist ) uzohlola amehlo wengane. Uma isifo se-Norrie sikhona, i-ophthalmologist izobona i-retina engavamile emuva kweso. Ukuxilongwa kungabuye kuqinisekiswe ukuhlolwa kofuzo lokuguqulwa kwesakhi se-NDP kwi-X chromosome.
Ukwelapha
Ayikho ukwelashwa okuqondile ku-Norrie isifo futhi akukho ndlela yokumisa noma yokuguqula ukulahlekelwa umbono kanye nokuzwa.
Ukwelashwa kungadingeka kwezinye izinkinga lesi sifo esingabangela, njengokuphefumula noma ukugaya. Ingane enesifo sikaNorrie izodinga imfundo ekhethekile ngenxa yokukhubazeka okubonakalayo nokulahlekelwa kwezindlebe.
Imithombo:
> "Izifo ze-Norrie." Inkomba yezifo ezinzima. 7 kuMbasa 2008. Inhlangano Kazwelonke Yezinkinga Ezinzima.
> Roche, O. "Izifo ze-Norrie." Izifo ezinzima. Julayi 2005. I-OrphaNet.
> "Izifo ze-Norrie." I-Genetics Home Reference. Apr 2007. I-Library Yomuthi Kazwelonke.
> "Izifo ze-Norrie." Index of Izimo. Okthoba 2005. Xhumana nomndeni.