Retinochoroidal colobomas are rare congenital abnormalities caused by incomplete closure of the embryonic fissure.Inheritance may be autosomal dominant.

• 摘要先天性视网膜脉络膜缺损是一种罕见的自体显性遗传疾病，导因为胎儿时期胚胎期裂隙愈合不良所造成。