A.對(duì)閉角型和開角型青光眼均有效 B.對(duì)閉角型有效,而對(duì)開角型無效 C.對(duì)開角型有效,而對(duì)閉角型無效 D.使虹膜向中心方向拉緊,根部變薄,房水回流通暢,降低眼壓 E.抑制睫狀體上皮細(xì)胞的分泌和血管滲出,降低眼壓