Uram M
Manhattan Eye, Ear and Throat Hospital, New York, NY, USA.
Ophthalmic Surg Lasers. 1996 Mar;27(3):174-8.
The laser endoscopy system has been modified to permit high resolution intraoperative fluorescein angiograms. Because the ciliary processes can be directly viewed and photocoagulated from a limbal wound in the phakic, aphakic, or pseudophakic eye in virtually any patient, the novel opportunity to angiographically study the ciliary processes before and after various forms of ablation was created.
Eighty patients were divided into four groups and were studied under various conditions.
The ciliary processes normally fill with fluorescein early in the angiogram and maintain hyperfluorescence throughout. Functional ciliary processes (or portions of them) are hyperfluorescent; ablated processes are densely hypofluorescent. This technique can delineate inadequately treated zones, permitting appropriate correction at the time of initial surgery. Eyes with previous transscleral cyclodestruction did not experience the degree of ciliary process ablation that the surgeon reported.
Intraoperative delineation of treated and untreated ciliary processes permits accurate correlation with observed intraocular pressure response.
激光内镜系统已被改进,以实现高分辨率的术中荧光血管造影。由于在几乎任何患者的有晶状体、无晶状体或人工晶状体眼中,都可以从角膜缘伤口直接观察和光凝睫状突,因此创造了在各种形式的消融前后对睫状突进行血管造影研究的新机会。
80名患者被分为四组,并在不同条件下进行研究。
在血管造影早期,睫状突通常会充满荧光素,并在整个过程中保持高荧光。功能性睫状突(或其部分)呈高荧光;消融的睫状突呈密集低荧光。该技术可以勾勒出治疗不充分的区域,以便在初次手术时进行适当的矫正。先前接受过经巩膜睫状体破坏术的眼睛,其睫状突消融程度与外科医生报告的不一致。
术中对已治疗和未治疗的睫状突进行描绘,有助于准确关联观察到的眼压反应。