超声生物显微镜诊断小范围晶状体不全脱位

Clinical application of ultrasound biomicroscope in the diagnosis of small range lens subluxation

目的探讨超声生物显微镜诊断小范围晶状体不全脱位的临床应用。方法回顾性分析晶状体不全脱位范围≤3个钟点位者62例（62只眼）。同时以正常人80例（80只眼）作为对照组。应用超声生物显微镜测量晶状体赤道部与睫状突的最远距离及最近距离，观察脱位晶状体、睫状体形态特点。结果晶状体不全脱位1个钟点位者10例，最远距离平均为（0．86±0．10）mm，最近距离为（0．41±0．05）mm，两者差值0．46±0．11；脱位2个钟点位者21例，最远距离为（0．88±0．15）mm，最近距离为（0．36±0．10）mm，两者差值0．52±0．14；脱位3个钟点位者31例，最远距离为（1．11±0．21）mm，最近距离为（0．42±0．14）mm，两者差值0．61±0．15。脱位患者与正常人品状体赤道部与睫状突的最远距离、最近距离及差值的差异有统计学意义，正常人与不同范围脱位者晶状体赤道部与睫状突间最远距离、最近距离及差值的差异有统计学意义。所有脱位者均出现不同程度的晶状体赤道部变圆或睫状体变平的表现。结论超声生物显微镜可以诊断小范围晶状体不全脱位。

Objective To explore the clinical application of ultrasound biomicroscope in the diag- nosis of small range lens subluxation. Methods The medical records of 62 eyes of 62 patients with the lens subluxation within 3 clock hours of the meridian were retrospectively analyzed. There were 80 normal eyes as the control group. The maximal and minimal distance between the lens equator and the ciliary process were measured by ultrasound biomicroscope in subluxation eyes and normal eyes. The shape and location of the lens and ciliary body were observed. Results There were 10 cases with lens subluxation within 1 clock hour. The maximal and minimal distance in these 10 cases were （0.86 ± 0.10） mm and （0.41 ± 0.05 ） ram, respectively. The difference between the maximal and minimal distance was （0.46 ± 0.11 ） ram. There were 21 cases with lens subluxation within 2 clock hours. The maximal and minimal distance in these 21 cases were （0.88 ±0.15） mm and （0.35 ±0. 10） mm, respectively, and the difference between them was （0.52 ±0.14） mm. There were 31 cases with lens subluxation within 3 clock hours. The maximal and minimal distance in these 31 cases were （1.11 ± 0.21 ）mm and （0.42 ± 0.14） mm, respectively, and the difference between them was （0.61 ± 0.15） mm. The differences were statistically significant between subluxation eyes and normal eyes in the maximal distance, minimal distance and the difference between maximal and minimal distance. Compared with different range subluxation eyes, the normal eyes were significantly different from them in the maximal and minimal distance and the difference between them. All cases had different degrees of round lens equator and flat ciliary body. Conclusion Small range lens subluxation can be diagnosed correctly by ultrasound biomicroscopy.