atrophy of iris

例句：

1. 1. The patient's vision gradually worsened due to the atrophy of the iris.
   由于虹膜萎缩，患者的视力逐渐恶化。
2. 2. A rare genetic condition called retinitis pigmentosa is associated with iris atrophy.
   一种罕见的遗传性疾病叫做色素性视网膜炎，与虹膜萎缩有关。
3. 3. In some cases, the atrophy of the iris can lead to blindness.
   在某些情况下，虹膜的萎缩可能导致失明。