Methods:Hemoporphyrin derivative (HPD) was used as photosensitizer in this study. Fifteen nude mice, associated with intraocular transplanted heterogeneous retinoblastoma in right eye, were divided into five groups (group A,B,C,D and E).

• 方法 :将 15只裸小鼠视网膜母细胞瘤眼内动物模型眼分成A、B、C、D及E五组 ,其中A和B组为观察组 ,即既给光敏剂HPD又照光 ,但光照剂量不同 ,A组为 15 0mw/cm2 ,B组为 30 0mw/cm2 ;