Marigo Flavio de Andrade, Zisman Márcio, Nehemy Márcio Bittar, Marigo Patrícia Vianna Brandão
The New York Eye and Ear Infirmary, New York Medical College, NY, USA.
Arq Bras Oftalmol. 2006 Nov-Dec;69(6):919-22. doi: 10.1590/s0004-27492006000600023.
To determine if pars plana vitrectomy induces long-term changes in the anterior segment anatomy by means of ultrasound biomicroscopy.
A prospective case series study was undertaken of consecutive patients referred to a tertiary eye care centre for pars plana vitrectomy as the only procedure. Twenty eyes of 20 patients undergoing pars plana vitrectomy alone were studied by ultrasound biomicroscopy. Silicone oil or scleral buckle was not used in any of the included cases. The following morphometric parameters were compared before and after 3 months of surgery: anterior chamber depth, angle-opening distance at 500 microm from the scleral spur, trabecular-ciliary process distance, ciliary body thickness at 1, 2 and 3 millimeters from the scleral spur and measurement of the supraciliary space thickness, when fluid was detected.
No statistically significant differences were found between the preoperative and the postoperative morphometric parameters.
Uncomplicated pars plana vitrectomy does not induce any long-term change on anterior segment morphometry. Based on these findings, the normal long-term pattern to be expected after pars plana vitrectomy is the conservation of the preoperative morphometry.
通过超声生物显微镜检查确定玻璃体切割术是否会引起眼前段解剖结构的长期变化。
对连续转诊至三级眼科护理中心仅接受玻璃体切割术的患者进行前瞻性病例系列研究。对20例仅接受玻璃体切割术的患者的20只眼睛进行超声生物显微镜检查。所有纳入病例均未使用硅油或巩膜扣带。比较手术前和术后3个月的以下形态学参数：前房深度、距巩膜突500微米处的房角开放距离、小梁-睫状体距离、距巩膜突1、2和3毫米处的睫状体厚度，以及在检测到液体时测量睫状体上腔厚度。
术前和术后形态学参数之间未发现统计学上的显著差异。
单纯的玻璃体切割术不会引起眼前段形态学的任何长期变化。基于这些发现，玻璃体切割术后预期的正常长期模式是术前形态学的保留。
