During late diastole, a transient decline in the flow elocity in the CCF may decrease the suction effect, causing a transient forward flow in the OA to occur (Fig. 5).

• 在舒张晚期，CCF中的血流速度瞬间下降，抽吸效应下降，引起眼动脉血流瞬间向前的发生[图5]。