Piebaldism

眼睛，但亦有可能一邊眼的虹膜是藍色，而另一邊卻是灰色的。這可能與瓦登伯革氏症候群（Waardenburg Syndrome）或Piebaldism（英语：Piebaldism）(Piebald Syndrome/斑狀白化病)相關。 後天的情況有可能是因為患上霍納氏症候群（英语：Horner's

Salma M. A novel KIT mutation in a family with expanded syndrome of piebaldism. JAAD Case Reports. 13 July 2019, 5 (7): 627–631. ISSN 2352-5126. PMC 6630042