眼部眼轴长度的光学生物测量与压平式超声测量的比较。
Comparison of optical biometry and applanation ultrasound measurements of the axial length of the eye.
作者信息
Nakhli Fouad R
机构信息
Optometry and Investigation Services, Dhahran Eye Specialist Hospital (DESH), P.O. Box 39455 Zip: 31942, Dhahran, Eastern Province, Saudi Arabia.
出版信息
Saudi J Ophthalmol. 2014 Oct;28(4):287-91. doi: 10.1016/j.sjopt.2014.04.003. Epub 2014 May 6.
PURPOSE
To investigate the relationship between optical biometry and applanation ultrasound measurement of the axial length of the eye.
MATERIALS AND METHODS
This prospective study enrolled 55 (68 eyes) consecutive patients scheduled for cataract surgery at Dhahran Eye Specialist Hospital (DESH). Every eye underwent two measurements each with an optical biometer and with applanation ultrasound. Only patients with cataract and no other ophthalmic pathology or disease were enrolled. Comparison, correlation and repeatability of axial length with both devices were analyzed. Agreement between devices was evaluated. A regression formula to convert measurements between devices was investigated. A p value less than 0.05 was statistically significant.
RESULTS
There was strong repeatability (99.4%) and agreement (r = 0.987) between both devices (p < 0.001); the difference between devices was mainly in short eyes (p = 0.031).
CONCLUSION
Optical biometry and applanation ultrasound measurements of axial length correlate well. However, optical biometry is preferable in short eyes.
目的
研究光学生物测量与压平式超声测量眼轴长度之间的关系。
材料与方法
这项前瞻性研究纳入了达兰眼科专科医院（DESH）计划进行白内障手术的55例（68只眼）连续患者。每只眼睛分别使用光学生物测量仪和压平式超声进行两次测量。仅纳入患有白内障且无其他眼科病理或疾病的患者。分析了两种设备测量眼轴长度的比较、相关性和可重复性。评估了两种设备之间的一致性。研究了用于在两种设备之间转换测量值的回归公式。p值小于0.05具有统计学意义。
结果
两种设备之间具有很强的可重复性（99.4%）和一致性（r = 0.987）（p < 0.001）；两种设备之间的差异主要存在于短眼（p = 0.031）。
结论
光学生物测量和压平式超声测量眼轴长度具有良好的相关性。然而，在短眼中光学生物测量更可取。
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