[使用裂隙灯方法（Orbscan）进行眼部生物测量]

Allouch C, Touzeau O, Borderie V, Puech M, Scheer S, Laroche L

Pôle Saint Antoine/CHNO des Quinze-Vingts, 28, rue de Charenton, 75571 Paris Cedex 12, France.

J Fr Ophtalmol. 2001 Sep;24(7):710-5.

PURPOSE

To evaluate the accuracy and reproducibility of the biometric measurements obtained with the Orbscan((R)) device in normal eyes.

METHODS

Anterior chamber depth, axial length, and corneal diameter were studied in 50 normal eyes of 25 patients using the Orbscan((R)) device and A-Scan ultrasonography. For each eye, two exams were done successively and reproducibility was calculated by analyzing the difference between both measurements.

RESULTS

The reproducibility of anterior chamber depth and corneal diameter measurements obtained by Orbscan((R)) was high (respectively 0.721.25% and 0.831.40%). The anterior chamber depth measurements by Orbscan((R)) and A-Scan ultrasonography were strongly correlated (rs=0.92;p<0.001). The axial length measurement obtained with the Orbscan((R)) device was less reproducible (3.554.11%). For the axial length, the Orbscan((R)) measurements and A-Scan ultrasonography measurement was poorly correlated. (rs=0.64; p<0.001).

CONCLUSION

The anterior chamber depth measurement obtained with the Orbscan((R)) device showed high reproducibility and it was strongly correlated with the measurement obtained by A-Scan ultrasonography. Axial length measurement obtained with the Orbscan((R)) device was less reproducible and poorly correlated with the A-Scan ultrasonography measurement. It was not relevant for clinical application.

目的

评估使用Orbscan（R）设备在正常眼中获得的生物测量的准确性和可重复性。

方法

使用Orbscan（R）设备和A超超声检查对25例患者的50只正常眼的前房深度、眼轴长度和角膜直径进行研究。对每只眼睛连续进行两次检查，并通过分析两次测量之间的差异来计算可重复性。

结果

Orbscan（R）获得的前房深度和角膜直径测量的可重复性较高（分别为0.72±1.25%和0.83±1.40%）。Orbscan（R）和A超超声检查的前房深度测量结果高度相关（rs = 0.92；p<0.001）。使用Orbscan（R）设备获得的眼轴长度测量的可重复性较低（3.55±4.11%）。对于眼轴长度，Orbscan（R）测量结果与A超超声检查测量结果相关性较差（rs = 0.64；p<0.001）。