Alió Jorge, Rodríguez-Prats José Luis, Galal Ahmed, Ramzy Mohamed
Instituto Oftalmológico de Alicante, VISSUM Corp., and Ophthalmology Division, Miguel Hernandez University, Alicante, Spain.
Ophthalmology. 2005 Nov;112(11):1997-2003. doi: 10.1016/j.ophtha.2005.06.024. Epub 2005 Sep 23.
To compare outcomes of microincision cataract surgery (MICS) with coaxial phacoemulsification.
Prospective randomized consecutive case series.
One hundred eyes of 50 patients with nuclear or corticonuclear cataract (grades 2+ to 4) with Lens Opacities Classification System III.
One hundred eyes (50 patients) were randomly operated through clear corneal incisions using 2 techniques: coaxial phacoemulsification (50 eyes) and microincision cataract surgery (50 eyes).
Mean phacoemulsification time, total phacoemulsification percent, effective phacoemulsification time (EPT) (calculated by multiplying total phacoemulsification time in seconds by the average power percent used), intraoperative total balanced salt solution (BSS) volume, visual outcome, vectorial astigmatic changes, corneal thickness, endothelial cell count, and anterior chamber flare and cells preoperatively and at 1 day, 1 month, and 3 months.
Statistically significant differences were found between MICS and coaxial phacoemulsification regarding mean incision size, mean total phacoemulsification percent, and EPT. There were no significant differences between the techniques regarding the mean percent of endothelial cell loss, anterior chamber cell count and flare, mean phacoemulsification time, pachymetric measures or total BSS volume utilized, or visual outcome. The vectorial astigmatic changes in the MICS group showed a change of < or =0.25 diopters (D) in 35% of the eyes, 0.25 to 0.5 D in 50% of the eyes, and 0.5 to 1.0 D in 15% of the eyes. These changes were induced by the surgery. Vectorial astigmatic changes of >1 D were not observed. In the coaxial phacoemulsification group, vectorial astigmatic changes of <0.25 D were not observed either. Changes of 0.25 to 0.5 D were seen in 20% of the eyes, and changes of 0.5 to 1.0 D were seen in 30%. Fifty percent of the eyes showed changes of >1.0 D. Mean vectorial astigmatic changes were 0.36+/-0.23 D in the MICS group and 1.2+/-0.74 D in the coaxial phacoemulsification group (P<0.001).
Microincision cataract surgery significantly lowered mean phacoemulsification time, mean total phacoemulsification percent, mean EPT, and surgically induced astigmatism when compared with coaxial phacoemulsification.
比较微切口白内障手术（MICS）与同轴超声乳化术的手术效果。
前瞻性随机连续病例系列研究。
50例患有核性或核皮质性白内障（晶状体混浊分级系统III级，2+至4级）患者的100只眼睛。
100只眼睛（50例患者）通过透明角膜切口随机采用两种技术进行手术：同轴超声乳化术（50只眼睛）和微切口白内障手术（50只眼睛）。
平均超声乳化时间、总超声乳化百分比、有效超声乳化时间（EPT）（通过将以秒为单位的总超声乳化时间乘以所使用的平均功率百分比计算得出）、术中总平衡盐溶液（BSS）用量、视力结果、矢量散光变化、角膜厚度、内皮细胞计数以及术前、术后1天、1个月和3个月时的前房炎症和细胞情况。
在平均切口大小、平均总超声乳化百分比和EPT方面，MICS与同轴超声乳化术之间存在统计学上的显著差异。在平均内皮细胞丢失百分比、前房细胞计数和炎症、平均超声乳化时间、角膜厚度测量值或所使用的总BSS用量以及视力结果方面，两种技术之间没有显著差异。MICS组的矢量散光变化显示，35%的眼睛变化≤0.25屈光度（D），50%的眼睛变化为0.25至0.5 D，15%的眼睛变化为0.5至1.0 D。这些变化是由手术引起的。未观察到矢量散光变化>1 D的情况。在同轴超声乳化术组中，也未观察到矢量散光变化<0.25 D的情况。20%的眼睛变化为0.25至0.5 D，30%的眼睛变化为0.5至1.0 D。50%的眼睛变化>1.0 D。MICS组的平均矢量散光变化为0.36±0.23 D，同轴超声乳化术组为1.2±0.74 D（P<0.001）。
与同轴超声乳化术相比，微切口白内障手术显著降低了平均超声乳化时间、平均总超声乳化百分比、平均EPT以及手术引起的散光。
Zotero 插件