Nagamoto S, Kohzuka T, Nagamoto T
Department of Ophthalmology, Toranomon Hospital, Tokyo, Japan.
J Cataract Refract Surg. 1998 Sep;24(9):1271-4. doi: 10.1016/s0886-3350(98)80026-6.
A 54-year-old man developed pupillary block resulting from pupillary capture 2 months after uneventful phacomulsification and AcrySof intraocular lens (IOL) implantation. The IOL was placed in the bag through a 6.0 mm continuous curvilinear capsulorhexis. The glaucoma was treated with intravenous drip infusion of a hyperosmotic diuretic, followed by peripheral iridectomy, iridocapsular synechiolysis, and IOL repositioning. The IOL loops were located completely in the bag. However, pupillary capture recurred 3 weeks after the surgery, at which time intraocular pressure was normal. The flexibility of the IOL optic and its large overall length and rigid, low-angulated loops were the probable causes for the recurrence of the pupillary capture. The IOL was exchanged for a sulcus-fixated, single-piece poly(methylmethacrylate) lens with 10 degree angulated loops. Pupillary capture did not recur during the follow-up.
一名54岁男性在白内障超声乳化吸除术及植入AcrySof人工晶状体（IOL）术后2个月，因瞳孔夹持导致瞳孔阻滞。IOL通过6.0mm连续环形撕囊被植入囊袋内。青光眼经静脉滴注高渗利尿剂治疗，随后行周边虹膜切除术、虹膜囊膜粘连松解术及IOL复位。IOL袢完全位于囊袋内。然而，术后3周瞳孔夹持复发，此时眼压正常。IOL光学部的柔韧性、其整体较大的长度以及坚硬、低角度的袢可能是瞳孔夹持复发的原因。将IOL更换为沟内固定的单件式聚甲基丙烯酸甲酯晶状体，其袢呈10度角。随访期间瞳孔夹持未再复发。
