Department of Ophthalmology and Visual Science, Seoul St Mary's Hospital, College of Medicine, Catholic University of Korea, Seoul, South Korea.
J Cataract Refract Surg. 2011 Nov;37(11):2028-33. doi: 10.1016/j.jcrs.2011.05.038. Epub 2011 Sep 9.
To compare clinical and intraoperative parameters of 3 phaco tip designs in torsional phacoemulsification using the bevel-down technique.
Department of Ophthalmology and Visual Science, Seoul St. Mary's Hospital, College of Medicine, Catholic University of Korea, Seoul, South Korea.
Clinical trials.
Consecutive cases were randomly assigned to have coaxial microincision cataract surgery using the mini-flared 30-degree Kelman tip, mini-flared 45-degree Kelman tip, or reverse mini-flared 30-degree Kelman tip. Clinical measurements included preoperative and 2-month postoperative uncorrected distance visual acuity, endothelial cell counts, and anterior segment optical coherence tomography and preoperative and 1-day postoperative central corneal thickness. Intraoperative measurements included cumulative dissipated energy (CDE) and balanced salt solution use. Intraoperative video recording was used to visualize tip movements in the anterior chamber.
The study enrolled 302 eyes of 297 patients. Intraoperatively, there was less CDE use with the 45-degree Kelman tip and reverse 30-degree Kelman tip than with the 30-degree Kelman tip (P<.05). There were no statistically significant differences in any clinical parameter between the 3 tips. Intraoperative films showed that the opening of the reverse 30-degree Kelman tip approached the nucleus more easily than the opening of the other 2 tips.
In torsional phacoemulsification through microincisions with the bevel-down technique, the reverse mini-flared 0.9 mm 30-degree Kelman tip was as effective as the mini-flared 0.9 mm 45-degree Kelman tip with regard to intraoperative characteristics, such as total energy use.
No author has a financial or proprietary interest in any material or method mentioned.
比较使用斜面下技术的扭转超声乳化中 3 种超声乳化头设计的临床和术中参数。
韩国天主教大学首尔圣玛丽医院眼科和视觉科学系。
临床试验。
连续病例随机分为使用微型喇叭口 30 度 Kelman 头、微型喇叭口 45 度 Kelman 头或反向微型喇叭口 30 度 Kelman 头进行同轴微切口白内障手术。临床测量包括术前和术后 2 个月的未矫正远视力、内皮细胞计数以及眼前节光学相干断层扫描和术前及术后 1 天的中央角膜厚度。术中测量包括累积耗散能量（CDE）和平衡盐溶液的使用。术中录像用于观察前房内尖端的运动。
该研究纳入了 297 名患者的 302 只眼。术中，45 度 Kelman 头和反向 30 度 Kelman 头的 CDE 使用量均少于 30 度 Kelman 头（P<.05）。在这 3 个探头中，任何临床参数之间均无统计学差异。术中胶片显示，与另外 2 个探头的开口相比，反向 30 度 Kelman 头的开口更易于接近核。
在使用斜面下技术的微切口扭转超声乳化中，反向微型喇叭口 0.9 毫米 30 度 Kelman 头在总能量使用等术中特性方面与微型喇叭口 0.9 毫米 45 度 Kelman 头一样有效。
没有作者在任何材料或方法上有财务或专有利益。
