对于色素播散综合征，激光虹膜切开术后虹膜晶状体接触减少。

Iridolenticular contact decreases following laser iridotomy for pigment dispersion syndrome.

作者信息

Breingan P J, Esaki K, Ishikawa H, Liebmann J M, Greenfield D S, Ritch R

机构信息

Department of Ophthalmology, New York Eye and Ear Infirmary, NY 10003, USA.

出版信息

Arch Ophthalmol. 1999 Mar;117(3):325-8. doi: 10.1001/archopht.117.3.325.

DOI:10.1001/archopht.117.3.325

PMID:10088809

Abstract

OBJECTIVE

To evaluate changes in anterior segment anatomy after laser iridotomy for pigment dispersion syndrome.

METHODS

Ultrasound biomicroscopy was performed on 7 eyes of 7 untreated patients with reverse pupillary block and pigment dispersion syndrome. A radially oriented image with the probe perpendicular to the eye in the superior meridian was obtained before and at least 1 week after laser iridotomy in each eye. We assessed changes in angle recess area and iris-lens contact distance.

RESULTS

Mean +/- SD patient age was 31.3 +/- 5.7 years and mean +/- SD refractive error was -5.0 +/- 3.9 diopters. Angle recess area (mean +/- SD, 0.78 +/- 0.28 vs 0.35 +/- 0.11 mm2; P=.001, paired t test) and iris-lens contact distance (2.05 +/- 0.28 vs 0.79 +/- 0.13 mm; P<.001) decreased following iridotomy. Central anterior chamber depth did not change.

CONCLUSION

Flattening of the iris following laser iridotomy for pigment dispersion syndrome causes a decrease in iris-lens contact and angle width while lens position remains constant.

摘要

目的

评估色素性分散综合征行激光虹膜切开术后眼前节解剖结构的变化。

方法

对7例未经治疗的反向瞳孔阻滞合并色素性分散综合征患者的7只眼进行超声生物显微镜检查。每只眼在激光虹膜切开术前及术后至少1周获取探头垂直于眼上子午线的径向图像。我们评估了房角隐窝面积和虹膜-晶状体接触距离的变化。

结果

患者平均年龄为31.3±5.7岁，平均±标准差屈光不正为-5.0±3.9屈光度。虹膜切开术后房角隐窝面积（平均±标准差，0.78±0.28 vs 0.35±0.11 mm²；P = 0.001，配对t检验）和虹膜-晶状体接触距离（2.05±0.28 vs 0.79±0.13 mm；P < 0.001）减小。中央前房深度未改变。