超声乳化透明晶状体吸除术治疗高度近视的临床研究

目的探讨超声乳化透明晶状体吸除联合人工晶状体植入术治疗高度近视的有效性和安全性.方法对26例(36只眼)高度近视患者行巩膜隧道切口超声乳化透明晶状体吸除联合人工晶状本植入术.平均年龄53.9岁,术前矫正视力0.2～1.0,平均近视度数(-13.1l±4.33)D,平均散光度数(0.72±0.91)D,平均眼轴长度(28.02±2.14)mm,平均植入人工晶状体屈光度数(+8.62±4.76)D.结果术后所有患者裸眼视力提高;25只眼(69.4%)裸眼视力≥0.5;27只眼(75.0%)矫正视力较术前提高.35只眼(97.2%)矫正视力≥0.5.术后平均近视度数(-1.51±0.60)D,平均散光度数(0.64±0.80)D.术后平均随访时间23.5个月.术后发生晶状体后囊膜混浊2只眼(5.6%),未见视网膜裂孔、视网膜脱离及黄斑囊样水肿.结论超声乳化透明晶状体吸除联合人工晶状体植入术是矫治高度近视安全、有效的方法,具有术后视力好、并发症少、预测屈光状态准确性及稳定性好等优点.

Clear lens with phacoemulsifcation and posterior chamber intraocular lens implantation for treatment of high myopia

OBJECTIVE: To probe into the effectiveness and safety of clear lens extraction with phacoemulsification and implantation of posterior chamber intraocular lens (PC-IOL) to correct high myopia. METHODS: Phacoemulsification and implantation of PC-IOL through scleral tunnel incision was performed on 36 eyes of 26 high myopic patients with clear crystalline lens. The average age of patients was 53.9 years (36-67 years) old. The preoperative corrected visual acuity was 0.2-1.0. The mean preoperative spherical equivalent and astigmatism was (-13.11 +/- 4.33) D and (0.72 +/- 0.91) D respectively. The mean axial length was (28.02 +/- 2.14) mm. The mean diopter of IOL was (+8.62 +/- 4.76) D. RESULTS: The uncorrected visual acuity improved in all cases postoperatively, with 25 eyes (69.4%) achieving > or = 0.5. After surgery, the corrected visual acuity improved in 27 eyes (75.0%), and was > or = 0.5 in 35 eyes (97.2%). The mean postoperative spherical equivalent and astigmatism was (-1.51 +/- 0.60) D and (0.64 +/- 0.80) D respectively. The average follow-up was 23.5 months (7-35 months). The postoperative complication was posterior capsular opacification (5.6%). No retinal hole or detachment and cystoid macular edema were observed in this series. CONCLUSIONS: Clear lens phacoemulsification and PC-IOL implantation to correct high myopia is a safe, effective procedure serving as a refractive surgery. It is worth to spread due to good outcome of visual acuity, low incidence of complications, high predictability and stability.