Dada Laser Eye Institute, Pune, India.
Indian J Ophthalmol. 2010 Sep-Oct;58(5):385-8. doi: 10.4103/0301-4738.67045.
To compare corneal pachymetry assessment by the Galilei dual Scheimpflug analyzer with that done by ultrasound (US) pachymetry.
Forty six patients (92 eyes) were subjected to corneal pachymetry assessment by Galilei dual Scheimpflug analyzer and US. All the readings were taken by a single operator. Intraoperator repeatability for the Galilei was assessed by taking 10 readings in one eye each of 10 patients. To study the interoperator reproducibility for the Galilei, two observers took a single reading in both the eyes of 25 patients.
The mean central corneal thickness (CCT) measured by US was 541.83 +/- 30.56 microm standard deviation (SD) and that measured by Galilei was 541.27 +/- 30.07 microm (SD). There was no statistically significant difference between both the methods (P < 0.001). The coefficient of repeatability was 0.43% while the coefficient of reproducibility was 0.377% for the Galilei.
Objective, noncontact measurement of the CCT with the Galilei dual Scheimpflug analyzer was convenient, had excellent intraoperator repeatability and interoperator reproducibility, and findings were similar to those obtained with standard US pachymetry.
比较 Galilei 双折射仪和超声（US）角膜测厚仪对角膜厚度的评估。
对 46 例（92 只眼）患者同时行 Galilei 双折射仪和 US 角膜测厚检查。所有检查均由同一位操作者完成。通过对 10 例患者每只眼测量 10 次，评估 Galilei 仪的操作者内重复性。为研究 Galilei 仪的操作者间可重复性，两位观察者在 25 例患者的双眼各测量 1 次。
US 测量的中央角膜厚度（CCT）平均值为 541.83±30.56μm（标准差[SD]），Galilei 仪测量的平均值为 541.27±30.07μm（SD）。两种方法之间无统计学差异（P＜0.001）。Galilei 仪的重复性系数为 0.43%，再现性系数为 0.377%。
Galilei 双折射仪客观、非接触式测量 CCT 既方便，操作者内重复性又好，操作者间再现性也好，与标准 US 角膜测厚的结果相似。
