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Letter
Radial optic neurotomy in combined cilioretinal artery and central retinal vein occlusion
  1. S Mennel,
  2. K Droutsas,
  3. C H Meyer,
  4. J C Schmidt,
  5. P Kroll
  1. Department of Ophthalmology, Philipps-University Marburg, Germany
  1. Correspondence to: Stefan Mennel MD, Department of Ophthalmology, Philipps-University Marburg, Robert-Koch-Strasse 4, 35037 Marburg, Germany; stefan.mennellycos.com

https://doi.org/10.1136/bjo.2004.054858

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    Combined cilioretinal artery and central retinal vein occlusion (CRVO) is a rare clinical finding, first described by Oosterhuis.1 The pathogenesis of this condition is not well established and remains controversial. Most reports postulate that the initial CRVO causes an elevation of the intraluminal capillary pressure and induces a consecutively reduced perfusion pressure at the arterial side. Since the perfusion pressure of the cilioretinal artery is lower than the central artery, it becomes relatively occluded.2–4 Recently Opremcak et al described radial optic neurotomy (RON) involving pars plana vitrectomy (PPV) and radial incision of the optic nerve to treat CRVO.5 We report this new surgical approach in a patient with combined cilioretinal artery occlusion and CRVO.

    Case report

    A healthy 64 year old woman complained of unilaterally blurred vision for the past 3 days. Her visual acuity (VA) was 20/200 in the right eye (RE) and 20/20 in the left eye (LE). The anterior segment in both eyes was unremarkable on slit lamp …

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