Because one patient only suffers from iris coloboma instead of aniridia , we would like to propose that the primary embryological defect is due to aberrant development of mesoderm 网膜发育不良，角膜变性，白内障及续发性青光眼是常见使视力变坏的因素。
2.
Method / participants : reporting one case with iris coloboma and a chorioretinal coloboma in his right eye which was noted incidentally during operation for his spontaneous retinal detachment 此病人除了右眼视网膜脉络膜呈现缺损，右眼之虹膜亦于鼻下侧方向有钥匙孔状缺损。
3.
Purpose : to report a case of rhegmatogenous retinal detachment in a chorioretinal colobomatous patient , in whom the retina detached along the coloboma border through a slit - like break just at the junction of coloboma and normal retinal tissue 摘要本文报告在一位16岁右眼视网膜脉络膜缺损之男性身上，所出现之裂孔性视网膜剥离表现。
4.
Conclusion it is an effective way to cure metacarpophalangeal fracture with minor external fixation which the features of feathery weight , minor form , simple operation and so on , especially for the comminuted fracture and the bone coloboma 结论微型外固定支架器具小，重量轻，操作简单，稳定性好，适用范围广，尤其是粉碎性骨折或伴有骨缺损者，为一种有效的外固定治疗方法。
