[A超声检查与生物显微镜检查测量白内障患者前房深度的对比研究]

[A comparison study of anterior chamber depth using A sonography and biomicroscopy in patient with cataract].

作者信息

Xu Tang, Li Yi-zhuang, Zhang Si

机构信息

Department of Ophthalmology, Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China.

出版信息

Zhonghua Yan Ke Za Zhi. 2013 Feb;49(2):130-3.

PMID:23714029

Abstract

OBJECTIVE

To know the difference of measured anterior chamber depth (ACD) in cataract eyes between A-scan and ultrasound biomicroscopy (UBM) measurements.

METHODS

Case series study, the ACD of 396 patients (480 eyes with cataract) came from the Department of Ophthalmology, Nanjing Drum Tower Hospital between January, 2008 and March, 2010, were measured by A-scan and UBM. Two groups were classified by whether the optical area of anterior cortex was transparent or not: 433 (90.21%) eyes with transparent anterior cortex and 47 (9.79%) eyes with pacific anterior cortex. The former are classified into 3 groups: < 3.0 mm, 3.0 - 3.5 mm, > 3.5 mm, according to the ACD value of UBM. The differences of ACD between A-scan and USB readings was analyzed.

RESULTS

The average ACD value of cataract eyes with transparent anterior cortex was (3.24 ± 0.56) mm (measured by USB) and (3.14 ± 0.56) mm (measured by A-scan), respectively. There was no significant difference between these two measurements (t = 0.128, P = 0.082). In eyes with ACD < 3.0 mm, the average ACD was (2.61 ± 0.26) mm (by UBM) and (2.50 ± 0.29) mm (by A-scan), respectively, with a difference of (0.11 ± 0.10) mm. There was a statistical significant difference between these two measurements (t = 0.744, P = 0.023). The average ACD value of cataract eyes with pacific anterior cortex opacity was (2.51 ± 0.52) mm (by UBM) and (3.84 ± 0.55) mm (by A-scan), respectively, with a difference of (-1.33 ± 0.41) mm. There was a significant difference between these two values (t = 14.792, P = 0.000).

CONCLUSIONS

In cataract eyes with transparent optic area of anterior cortex, there is no significant difference between measured ACD by A-scan and UBM. In eyes with ACD less than 3.0 mm, there is a significant difference between measured value by A-scan and UBM. When the optical area of anterior cortex is pacific, A-scan records are much higher than the ACD value measured by UBM.

摘要

目的

了解白内障患者眼中A超与超声生物显微镜（UBM）测量的前房深度（ACD）的差异。

方法

病例系列研究，选取2008年1月至2010年3月期间南京鼓楼医院眼科的396例患者（480只白内障眼），分别用A超和UBM测量其ACD。根据前皮质光学区是否透明将两组进行分类：前皮质透明的眼433只（90.21%），前皮质混浊的眼47只（9.79%）。前者根据UBM测量的ACD值分为3组：<3.0mm、3.0 - 3.5mm、>3.5mm，分析A超与UBM测量的ACD差异。

结果

前皮质透明的白内障眼平均ACD值，UBM测量为（3.24±0.56）mm，A超测量为（3.14±0.56）mm，两者差异无统计学意义（t = 0.128，P = 0.082）。在ACD<3.0mm的眼中，平均ACD分别为UBM测量（2.61±0.26）mm，A超测量（2.50±0.29）mm，差值为（0.11±0.10）mm，两者差异有统计学意义（t = 0.744，P = 0.023）。前皮质混浊的白内障眼平均ACD值，UBM测量为（2.51±0.52）mm，A超测量为（3.84±0.55）mm，差值为（-1.33±0.41）mm，两者差异有统计学意义（t = 14.792，P = 0.000）。