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目的 探讨超声乳化粉碎取出术治疗晶状体后脱位的特点 ,并评价其疗效。方法 对晶状体后脱位 2 3只眼行玻璃体切除术和晶状体后脱位超声乳化粉碎取出术 ,11只眼同时植入前房型人工晶状体 ,1只眼同时行巩膜外冷凝、环扎和外加压术。术中应用高吸引力和中等超声能量粉碎晶状体核 ,最高输出超声能量设定为 5 0 %～ 6 0 %,实际输出超声能量为 2 5 %～ 40 %;最大吸引峰值设定为 110～ 12 0mmHg(1mmHg =0 133kPa) ;超声乳化粉碎时间为 43～ 2 0 3s,平均 117s。结果全部病例均成功完成晶状体后脱位超声乳化粉碎取出术 ,随访 5～ 19个月 ,平均 7 2个月。术中植入前房型人工晶状体者和马凡综合征患者 12只眼的术后矫正视力为 0 12～ 0 6 ,较术前明显改善。手术并发症主要为虹膜损伤。结论 在玻璃体腔中部行晶状体后脱位超声乳化粉碎取出术 ,安全、易行 ,对视网膜和巩膜无损伤 ,并发症少 ;手术同时可对其他相关眼病进行治疗。
Objective To investigate the characteristics of phacoemulsification and lens dislocation for the treatment of posterior lens dislocation and to evaluate its curative effect. Methods 23 cases of posterior lens discectomy were performed vitrectomy and posterior dislocation phacoemulsification and crush removal. Eleven eyes were simultaneously implanted with anterior chamber intraocular lens (IOL). One eye underwent scleral condensation at the same time. Cerclage and external compression . Intraoperative use of high-attraction and moderate ultrasonic energy to crush the lens nucleus, the maximum output ultrasonic energy is set to 50% ~ 60%, the actual output ultrasonic energy of 25% ~ 40%; maximum peak value is set to 110 ~ 12 0mmHg (1mmHg = 0 133kPa); phacoemulsification time of 43 ~ 20s, an average of 117s. Results All the cases were successful in phacoemulcification and phacoemulsification. The patients were followed up for 5-19 months with an average of 72 months. Intraoperative implanted anterior chamber intraocular lens and Marfan syndrome in 12 eyes postoperative corrected visual acuity was 0 12 ~ 0 6, significantly improved compared with preoperative. The main complications of iris injury. Conclusion In the middle of vitreous cavity, phacoemulsification and posterior dislocation of the lens are safe and easy to remove. There are few complications on the retina and sclera. The surgery can treat other related ophthalmopathy at the same time.