There are typical retinal vascular anomalies expansion, miliary aneurysm, arterial aneurysm, macroaneurysms and capillary without perfusion areas;

• 病变处均有典型的视网膜血管不规则扩张，粟粒状动脉瘤、大动脉瘤、微动脉瘤和毛细血管无灌注区；