微爆破模式在超声乳化手术中的临床应用

目的探讨微爆破模式超声乳化术结合高负压的使用对角膜内皮细胞的影响。设计前瞻性病例系列。研究对象98例(120眼)老年性白内障患者。方法用爱尔康公司Legacy20000珠峰系统超声乳化仪,将患者分为三组,分别采用爆破、脉冲和连续3种不同超声能量模式行超声乳化白内障吸除术。主要指标患者术前视力、晶状体核硬度以及角膜内皮细胞情况。术中实际超声能量,有效超声时间。术后1天角膜水肿情况,术后1个月最佳矫正视力及角膜内皮情况。结果爆破组术中超声能量及有效超声时间的使用均低于脉冲组和连续组,差异有显著性意义(P<0.001);术后角膜水肿及角膜内皮损失率均低于脉冲组和连续组,差异有显著性意义(P<0.05)。结论应用微爆破模式结合高负压进行白内障超声乳化术,可以有效地减少超声能量的使用,减少角膜内皮的损伤,是一种先进高效的手术技术。(眼科,2006,15:201-205)

The application of microburst mode for phacoemulsification

Objective To evaluate the effect on the corneal endothelial cell after phacoemulsification using the microburst mode with high vacuum. Design Prospective,observational case series. Participants 98 age-related cataract patients (120 eyes). Metheds All patients having phacoemulsification with the Alcon Legacy 20000 Everest software were assigned to 1 of 3 groups (the burst mode group,the pulse mode group and the continuous mode group). Main Outcome Measures Actual power,effect phaco time,visual acuity,corneal edema,and corneal endothelial cell loss. Results The mean actual power of the burst group was statistically lower than those of the other two groups,the effect phaco time of the burst group was statistically shorter than those of the other two groups. The corneal edema and the endothelial cell loss of the burst group were less than those of the other two groups. Conclusion The microburst mode with high vacuum increased efficiency of ultrasound power and decreased the loss of endothelial cell. (Ophthalmol CHN,2006,15: 201-205)