前段增殖性玻璃体视网膜病变的超声生物显微镜检查

目的 探讨超声生物显微镜（ＵＢＭ）对眼前段增殖性玻璃体视网膜病变（ａＰＶＲ）的诊断价值。方法 对２７例（２７只眼）临床上疑有ａＰＶＲ患者的睫状体和锯齿缘部的ＵＢＭ图像,结合Ｂ超图像和玻璃体手术中所见进行对照观察。结果 视网膜环形收缩者２０例,视网膜前移位者１５例,未能诊断ａＰＶＲ者７例。ａＰＶＲ的ＵＢＭ图形改变为玻璃体内增殖呈点状和条索状图形;环形收缩视网膜反光增强,向中央明显移位;前移位视网膜呈

Examination of anterior proliferative vitreoretinopathy with ultrasound biomicroscopy

OBJECTIVE: To diagnose anterior proliferative vitreoretinopathy (a-PVR) with ultrasound biomicroscopy (UBM). METHODS: The UBM images of 27 cases (27 eyes) of suspicious a-PVR from cases with retinal detachment with PVR were analyzed and compared with the images of B scan ultrasound and the findings during vitrectomy. RESULTS: UBM diagnosis of a-PVR was found in 20 eyes with retinal circumferential contraction, and in 15 eyes with retinal anterior displacement. A-PVR was not diagnosed by UBM in 7 eyes. UBM images of a-PVR included: the pattern of dots and cords in vitreous proliferation, the echo augmentation and obvious central displacement of the retina with circumferential contraction. Besides, the trough, "angle" and "Z" shaped overlap of the retina were the characteristics of the retinal anterior displacement. CONCLUSION: UBM plays an important role in the clinical diagnosis of a-PVR.