OBJECTIVE To demonstrate the fundus and histopathological changes in the normal miniature pig eye after radial optic neurotomy. METHODS Ophthalmoscopic examinations, fundus photography, and fluorescein angiography were performed on 12 eyes that underwent radial optic neurotomy, 5 normal eyes, and 7 eyes that underwent vitrectomy (from 12 pigs in total) preoperatively and 1, 7, 14, 30, and 90 ...

OBJECTIVES To evaluate the incidence of chorioretinal anastomosis after radial optic neurotomy and to determine its effect on visual acuity and foveal thickness in patients with central retinal vein occlusion. METHODS We conducted a prospective, uncontrolled, interventional study of 14 patients with preoperative visual acuities below 20/125. Pars plana vitrectomy and radial optic neurotomy we...

central retinal vein occlusion (crvo) is the third most common blinding vascular retinal disorder. as there is no proven treatment for crvo, we performed this study to evaluate the effectiveness of radial optic neurotomy (ron) on visual acuity in eyes with crvo. this study was designed as an interventional case series. pars plana vitrectomy with ron was performed in 18 eyes of 16 patients with ...

IMPORTANCE Radial optic neurotomy (RON) was first described by Opremcak as a treatment for patients with central retinal vein occlusion (CRVO). The most common cause of visual loss in patients with optic disc drusen is nonarteritic anterior ischemic optic neuropathy (NAION). The pathogenesis of nonarteritic anterior ischemic optic neuropathy associated with optic disc drusen is assumed to be si...

purpose: to evaluate the histopathologic features of optic neurotomy with microvitreoretinal (mvr) blade and excimer laser in cadaver eyes. method: optic neurotomy was performed in 11 cadaver eyes using 20-gauge mvr blade and in three cadaver eyes with pulsed xenon chloride (xecl) excimer laser (308 nm) via monofile light-conducting fiber with a core diameter of 200 microns. after tissue proces...

purpose: to evaluate the efficacy of radial optic neurotomy (ron) combined with or without intravitreal triamcinolone acetonid (ivta) injection in the management of central retinal vein occlusion (crvo). methods: this non-randomized clinical trial was conducted on 23 patients with crvo, who underwent ron with or without ivta injection. preoperative and postoperative best corrected visual acuity...

BACKGROUND/AIMS There is no effective treatment for ischaemic central retinal vein occlusion (CRVO). The two major negative outcomes are neovascular glaucoma (NVG) and severe central visual loss. In this study pars plana vitrectomy (PPV), mild panretinal photocoagulation, and intraocular gas injection were employed to prevent NVG. The potential role of incision of the lamina cribrosa (radial ne...