Kotb Ahmed Mohamed El-Moatassem, Elawamry Amr I
From the *Ophthalmology Department, Medicine, Ain Shams University, Cairo, Egypt; and †International Medical Center, Dubai, United Arab Emirates.
Asia Pac J Ophthalmol (Phila). 2013 Nov-Dec;2(6):372-4. doi: 10.1097/APO.0b013e31828a56f7.
To assess the feasibility of using the new torsional intelligent phacoemulsification software (Ozil IP) phacoemulsification in hard cataracts of N3+.
A cohort study.
Eighty patients were recruited and randomized into 2 groups, the study group and the control group. Each group consisted of 40 eyes. Routine cataract surgeries were performed using standard torsional software (Ozil) and Ozil IP in hard cataracts of N3+. Main outcome measures included cumulative dissipated energy (CDE), amount of balanced salt solution (BSS) used, and changes in central corneal thickness (CCT).
The mean CDE was significantly less in the study group compared with the control group (P = 0.05). The mean time in foot pedal position 3 (FP3) for varying grades of cataract density ranged from 16.3 to 30.2 seconds in the study group and from 19.1 to 39.7 seconds in the control group, which was statistically significant (P = 0.03). The amount of BSS used was 34.19 mL in the study group and 44.05 mL in the control group. On the first postoperative day, CCT was significantly different between the study and the control group (P = 0.005).
The 3 parameters (CDE, FP3 and BSS amount) were found to be effective with no significant complications. The new Ozil IP required less CDE and less FP3 time with less postoperative corneal edema, and thus patients had a more rapid visual recovery.
评估使用新型扭转式智能超声乳化软件（Ozil IP）进行超声乳化治疗N3+级硬核白内障的可行性。
队列研究。
招募80例患者并随机分为2组，即研究组和对照组。每组40只眼。对N3+级硬核白内障采用标准扭转式软件（Ozil）和Ozil IP进行常规白内障手术。主要观察指标包括累积消散能量（CDE）、平衡盐溶液（BSS）用量及中央角膜厚度（CCT）的变化。
研究组的平均CDE显著低于对照组（P = 0.05）。研究组不同白内障密度等级在脚踏板位置3（FP3）的平均时间为16.3至30.2秒，对照组为19.1至39.7秒，差异有统计学意义（P = 0.03）。研究组BSS用量为34.19 mL，对照组为44.05 mL。术后第1天，研究组和对照组的CCT有显著差异（P = 0.005）。
发现这3项参数（CDE、FP3和BSS用量）有效且无明显并发症。新型Ozil IP所需的CDE和FP3时间更少，术后角膜水肿更轻，因此患者视力恢复更快。
