ULTRASOUND BIOMICROSCOPY IN PLATEAU IRIS SYNDROME
ULTRASOUND BIOMICROSCOPY IN PLATEAU IRIS SYNDROME
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DOI：
10.1016/s0002-9394(14)76160-4
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发表时间：
1992-04-15
影响因子：
4.2
通讯作者：
FOSTER, FS
中科院分区：
文献类型：
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作者：
PAVLIN, CJ;RITCH, R;FOSTER, FS
超声生物显微镜是一种新技术，它使用高频超声（50 至 100 MHz）以高分辨率（20 至 50 μm）生成整个眼前节图像。 可以对虹膜角膜角、虹膜、睫状体和后房进行详细成像，并确定这些结构的尺寸和解剖关系。 高原虹膜综合征是一种闭角型青光眼虹膜切除术后房角仍保持对位闭合或可闭塞的病症。 虹膜如何保持在允许遮挡角度的位置尚不清楚。 我们对八名临床诊断为高原虹膜综合征的患者进行了超声生物显微镜眼科检查。 在所有患者中，与正常受试者和因瞳孔阻滞引起的闭角患者的位置相比，睫状突均位于前方。 睫状突在周边虹膜下方提供结构支撑，防止虹膜切除术后虹膜根部从小梁网脱落。
Ultrasound biomicroscopy is a new technique that uses high-frequency ultrasound (50 to 100 MHz) to produce images of the entire anterior segment at high resolution (20 to 50-mu-m). The iridocorneal angle, iris, ciliary body, and posterior chamber can be imaged in detail and the dimensions and anatomic relationships of these structures determined. Plateau iris syndrome is a condition in which the angle remains appositionally closed or occludable after iridectomy for angle-closure glaucoma. How the iris remains in a position that allows it to occlude the angle has been uncertain. We performed ultrasound biomicroscopy eye examinations on eight patients with clinically diagnosed plateau iris syndrome. In all the patients, ciliary processes were situated anteriorly compared to the position in normal subjects and in patients with angle closure caused by pupillary block. The ciliary processes provide structural support beneath the peripheral iris, preventing the iris root from falling away from the trabecular meshwork after iridectomy.