Beekhuis W H, Ando F, Zivojnović R, Mertens D A, Peperkamp E
Br J Ophthalmol. 1987 Mar;71(3):197-200. doi: 10.1136/bjo.71.3.197.
In the aphakic eye, with intact iris diaphragm, silicone oil has frequently caused a pupillary block. In this situation aqueous humour accumulates behind the iris and forces silicone oil through the pupil into the anterior chamber. An iridectomy at the 6 o'clock position can effectively prevent this pupillary block. The iridectomy allows free passage of aqueous to the anterior chamber which remains free of silicone oil. No permanent contact with silicone oil and the cornea is established, and development of keratopathy is prevented. The effect of this iridectomy in 62 eyes with intact iris diaphragm in patients in Rotterdam (35 cases) and Nagoya (27 cases) is demonstrated. Only in 6.5% of the cases was silicone oil present in the anterior chamber at the end of the follow-up period of 7 months.
在无晶状体眼且虹膜隔完整的情况下,硅油常常会导致瞳孔阻滞。在这种情况下,房水在虹膜后方积聚,并迫使硅油通过瞳孔进入前房。在6点位行虹膜切除术可有效预防这种瞳孔阻滞。该虹膜切除术可使房水自由进入前房,而前房内无硅油。硅油与角膜不会形成永久性接触,从而预防了角膜病变的发生。本文展示了在鹿特丹(35例)和名古屋(27例)对62例虹膜隔完整患者施行该虹膜切除术的效果。在7个月的随访期结束时,仅6.5%的病例前房内有硅油。