视网膜色素变性症是以夜盲和视野狭窄为特征的慢性、进行性、遗传性视网膜变性疾病。遗传方式有常染色体的显性、隐性、X染色体性三种,多数属于不能确定遗传方式的单发性病例。部分病例能够确定遗传因素,目前明确的遗传因素如表1所示。其病程进展根据遗传形式等病种不同,一般较为缓慢。如病情进展视 Retinitis pigmentosa is a chronic, progressive, inherited retinal degenerative disease characterized by night blindness and narrow vision. Genetic means autosomal dominant, recessive, X chromosome three, most of them can not determine the genetic mode of solitary cases. In some cases to determine the genetic factors, the current clear genetic factors such as shown in Table 1. The course of its progress according to genetic forms and other diseases are different, generally more slowly. As the condition progresses