When I was 4 or 5 years old, I was diagnosed with this incredibly rare disease called retinoschisis.
当我四五岁的时候。我被诊断出一种很罕见的疾病，叫做视网膜劈裂。
CNN 10 学生英语综合听力 2016年5月合集
At 4 years old, he was diagnosed with a rare eye disease called juvenile retinoschisis. By high school, Erik was completely blind.
4 岁时，他被诊断出患有一种罕见的眼病，称为青少年视网膜劈裂症。到了高中，埃里克完全失明了。
英语百科
Retinoschisis
Retinoschisis is an eye disease characterized by the abnormal splitting of the retina's neurosensory layers, usually in the outer plexiform layer. Most common forms are asymptomatic, some rarer forms result in a loss of vision in the corresponding visual field.