METHODS: Ninety people(180 normal eyes)had flow velocity measured by CDI in three vessels,ophthalmic artery(OA),central retinal artery(CRA) and posterior ciliary artery(PCA),and the relations between velocity and affecting factors were ana lysed.

• 方法：用CDI测量90例（180只眼）正常人眼动脉（ophthalmicartery，OA），视网膜中央动脉（centralretinalartery，CRA），睫状后动脉（posteri－orciliaryartery，PCA）的血流参数，分析其与影响因素间关系。