From Laserforum Köln e.V. (Schultz), Cologne University of Applied Science (Oberheide), and Augenklinik am Neumarkt (Kermani), Cologne, Germany.
From Laserforum Köln e.V. (Schultz), Cologne University of Applied Science (Oberheide), and Augenklinik am Neumarkt (Kermani), Cologne, Germany.
J Cataract Refract Surg. 2016 Jun;42(6):904-12. doi: 10.1016/j.jcrs.2016.01.048.
To test whether keratometry (K) and astigmatism measurements provided by the Verion Reference Unit (an image-guided system) compared well with the Tonoref II automated tonometer-refractometer, IOLMaster partial coherence interferometry (PCI) biometer, AL-Scan optical biometer, Pentacam rotating Scheimpflug camera, and OPD Scan III wavefront aberrometer.
Augenklinik am Neumarkt, Cologne, Germany.
Retrospective case series.
Patients having routine cataract surgery had standard preoperative assessment including biometry measurement with all study devices. The K values, power of astigmatism, axis, and the lens power of an imaginary intraocular lens (IOL) were analyzed for each device.
One hundred five eyes of 62 patients with a mean age of 68.5 years ± 11.9 (SD) (range 27.2 to 89.7 years) were included in the study. The mean differences in flat K readings between the image-guided system and the tonometer-refractometer, PCI biometer, optical biometer (2.4 and 3.2 mm), rotating Scheimpflug camera, and wavefront aberrometer were -0.03 mm, 0.00 mm, 0.01 mm (both 2.4 and 3.2 mm), -0.03 mm, and -0.01 mm, respectively (P < .001). Differences were slightly greater for steep K readings as follows: -0.04 mm, -0.01 mm, -0.02 (optical biometer 2.4 mm), -0.03 mm (optical biometer 3.2 mm), -0.04 mm, and -0.06 mm, respectively (P < .001). The calculated power of an imaginary IOL from the study devices fell within 0.28 diopter of one another (P > .05).
The image-guided system compared well with and provided astigmatism measurements similar to those of currently available diagnostic measurement devices. This system can aid appropriate preoperative IOL power calculations.
Drs. Schultz, Oberheide, and Kermani have received honoraria from Alcon Pharma GmbH for corporate presentations.
为了测试角膜曲率计（K）和散光测量值是否与 Verion 参考单元（图像引导系统）提供的值相符，我们将该系统与 Tonoref II 自动眼压计折射计、IOLMaster 部分相干干涉（PCI）生物测量仪、AL-Scan 光学生物测量仪、Pentacam 旋转 Scheimpflug 相机和 OPD Scan III 波前像差仪进行了比较。
德国科隆的 Augenklinik am Neumarkt。
回顾性病例系列。
对接受常规白内障手术的患者进行标准的术前评估，包括使用所有研究设备进行生物测量。分析每个设备的 K 值、散光力、轴向和假想人工晶状体（IOL）的晶状体力。
这项研究共纳入了 62 名患者的 105 只眼，平均年龄 68.5 岁±11.9 岁（标准差）（范围 27.2 至 89.7 岁）。图像引导系统与眼压计折射计、PCI 生物测量仪、光学生物测量仪（2.4 和 3.2 毫米）、旋转 Scheimpflug 相机和波前像差仪的平均 flat K 读数差异分别为-0.03 毫米、0.00 毫米、0.01 毫米（2.4 和 3.2 毫米）、-0.03 毫米和-0.01 毫米（均为 P<.001）。陡峭 K 读数的差异略大，分别为-0.04 毫米、-0.01 毫米、-0.02（光学生物测量仪 2.4 毫米）、-0.03 毫米（光学生物测量仪 3.2 毫米）、-0.04 毫米和-0.06 毫米（均为 P<.001）。从研究设备计算得出的假想 IOL 力相差在 0.28 屈光度以内（P>.05）。
图像引导系统与目前可用的诊断测量设备的比较结果良好，提供的散光测量值相似。该系统可以帮助进行适当的术前 IOL 力计算。
舒尔茨博士、奥伯海德博士和卡曼尼博士因公司演讲而从爱尔康制药公司获得了酬金。
