摘要
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 discuss the surgical techniques and therapeutic effects of phacofragmentation of the dislocated lens in the vitreous cavity. Methods Phacofragmentation was performed on 23 eyes of 23 patients with dislocated lens or subluxated lens in the vitreous cavity. With high suction and moderate ultrasound, the nucleus could be emulsified. Energy and time of emulsification: 50%-60% of energy was set up and emulsification spent 43 s to 3 min 23 s (mean 1 min 57 s). The pressure of maximum vacuum aspiration was 110-120 mm Hg (1 mm Hg=0.133 kPa). In 11 eyes, anterior chamber intraocular lens (ACIOL) was implanted. Cryoapplications and encircling procedure were also performed on one eye. Results Phacofragmentation was successful in all patients. After follow-up for 5-19 months (mean 7.2 months), the corrected visual acuity was obviously improved in the cases of ACIOL and Marfan′s syndrome, with 12 patients achieving visual acuity of 0.12-0.6. The major complications were corneal edema and damage of iris. Conclusions It is demonstrated that phacofragmentation in the central vitreous cavity is safe and fairly easy procedure without adverse effects on retina and sclera. It helps to reduce intraoperative risks of alternative methods, avoiding a large opening of the anterior chamber and hypotony of the globe.
出处
《中华眼科杂志》
CAS
CSCD
北大核心
2001年第6期428-430,共3页
Chinese Journal of Ophthalmology
