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Abstract：
BACKGROUND: Secondary iris cysts are uncommon complication after cataract surgery. The reports of an iris cyst after conventional phacoemulsification surgery are scanty, let alone the iris cyst following femtosecond laser-assisted cataract surgery (FLACS). We herein report an unusual case of an iris cyst after an uneventful FLACS.
METHODS: A 64-year-old man who was healthy underwent FLACS for a moderate cataract of his left eye. Shortly after surgery, he achieved 20/20 vision, but anterior bowing of temporal iris was noted on postoperative day 9 with a retro-pupillary iris cyst at temporal-inferior quadrant found after pupil dilatation. The cyst was confirmed by ultrasound bio-microscopy afterward. Four weeks later, argon laser cystotomy was performed, and the cyst disappeared 3 days later. The patient\'s vision remained stable thereafter.
CONCLUSIONS: Although rare, secondary iris cyst may be one of the complications after FLACS. Argon laser cystotomy is effective in the management of post-FLACS iris cyst.
METHODS: A 64-year-old man who was healthy underwent FLACS for a moderate cataract of his left eye. Shortly after surgery, he achieved 20/20 vision, but anterior bowing of temporal iris was noted on postoperative day 9 with a retro-pupillary iris cyst at temporal-inferior quadrant found after pupil dilatation. The cyst was confirmed by ultrasound bio-microscopy afterward. Four weeks later, argon laser cystotomy was performed, and the cyst disappeared 3 days later. The patient\'s vision remained stable thereafter.
CONCLUSIONS: Although rare, secondary iris cyst may be one of the complications after FLACS. Argon laser cystotomy is effective in the management of post-FLACS iris cyst.
摘要：
背景：继发性虹膜囊肿是白内障手术后罕见的并发症。常规超声乳化手术后虹膜囊肿的报道很少，更不用说飞秒激光辅助白内障手术（FLACS）后的虹膜囊肿了。我们在此报告了一个不正常的FLACS后虹膜囊肿的不寻常病例。
方法：一名健康的64岁男性因左眼中度白内障接受FLACS治疗。手术后不久,他实现了20/20的愿景，但是在术后第9天发现了颞虹膜的前弯曲，瞳孔扩张后发现了颞下象限的瞳孔后虹膜囊肿。随后通过超声生物显微镜证实了囊肿。四周后,行氩激光膀胱切开术,3天后囊肿消失.此后患者视力保持稳定。
结论：虽然罕见，继发性虹膜囊肿可能是FLACS术后并发症之一。氩激光膀胱切开术可有效治疗FLACS后虹膜囊肿。
方法：一名健康的64岁男性因左眼中度白内障接受FLACS治疗。手术后不久,他实现了20/20的愿景，但是在术后第9天发现了颞虹膜的前弯曲，瞳孔扩张后发现了颞下象限的瞳孔后虹膜囊肿。随后通过超声生物显微镜证实了囊肿。四周后,行氩激光膀胱切开术,3天后囊肿消失.此后患者视力保持稳定。
结论：虽然罕见，继发性虹膜囊肿可能是FLACS术后并发症之一。氩激光膀胱切开术可有效治疗FLACS后虹膜囊肿。
