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Published on: August 6, 2021
Radial optic neurotomy for central retinal vein occlusion: 117 consecutive cases
E Mitchel Opremcak1, Alan J Rehmar, Chet D Ridenour
1Department of Ophthalmology, Ohio State University, Columbus, Ohio, USA.
Retina (Philadelphia, Pa.)
|March 2, 2006
Summary
Radial optic neurotomy (RON) offers a safe surgical solution for central retinal vein occlusion (CRVO). This procedure effectively decompress central retinal veins, improving vision in most patients with this severe retinal vascular disease.
Area of Science:
- Ophthalmology
- Vascular Medicine
- Surgical Innovation
Background:
- Central retinal vein occlusion (CRVO) is a significant cause of vision loss.
- Optic disk anatomy may predispose individuals to retinal vasoocclusive diseases.
- Neurovascular compression at the scleral outlet is a potential cause of CRVO.
Purpose of the Study:
- To evaluate the safety and efficacy of radial optic neurotomy (RON) for CRVO.
- To decompress the central retinal vein by surgically opening the scleral outlet.
Main Methods:
- 117 patients with severe vision loss due to CRVO underwent pars plana vitrectomy with RON.
- Outcomes were assessed using fundus photography, fluorescein angiography, visual acuity, and biomicroscopy.
Main Results:
- The procedure was safe with no serious complications.
- 95% of patients showed anatomical and clinical improvement.
- Visual acuity improved by an average of 2.5 lines in 71% of patients.
Conclusions:
- Radial optic neurotomy (RON) is a technically feasible and safe surgical intervention for CRVO.
- RON achieved anatomical resolution in 95% of patients.
- Improved visual function was observed in 71% of patients following RON.