May 2005
Volume 46, Issue 13
Free
ARVO Annual Meeting Abstract  |   May 2005
Evaluation of Radial Optic Neurotomy for Central Retinal Vein Occlusion, a Color Doppler Imaging Investigation
Author Affiliations & Notes
  • M. Nakajima
    Ophthalmology, Nihon University, Chiyoda–Ku, Japan
  • Y. Yamazaki
    Ophthalmology, Nihon University, Chiyoda–Ku, Japan
  • M. Yamamoto
    Ophthalmology, Nihon University, Chiyoda–Ku, Japan
  • M. Kawashima
    Ophthalmology, Nihon University, Chiyoda–Ku, Japan
  • Footnotes
    Commercial Relationships  M. Nakajima, None; Y. Yamazaki, None; M. Yamamoto, None; M. Kawashima, None.
  • Footnotes
    Support  None.
Investigative Ophthalmology & Visual Science May 2005, Vol.46, 4031. doi:
  • Views
  • Share
  • Tools
    • Alerts
      ×
      This feature is available to authenticated users only.
      Sign In or Create an Account ×
    • Get Citation

      M. Nakajima, Y. Yamazaki, M. Yamamoto, M. Kawashima; Evaluation of Radial Optic Neurotomy for Central Retinal Vein Occlusion, a Color Doppler Imaging Investigation . Invest. Ophthalmol. Vis. Sci. 2005;46(13):4031.

      Download citation file:


      © ARVO (1962-2015); The Authors (2016-present)

      ×
  • Supplements
Abstract

Abstract: : Purpose: To evaluate the effect of radial optic neurotomy (RON) on hemodynamics in patients with central retinal vein occlusion (CRVO) using Color Doppler imaging (CDI). Methods: Four eyes of four patients with CRVO were studied (3 males and 1 female, age range 67–77 years). The nasal portion of the optic disc was punctured using a CRVO knife after vitrectomy. Within one week before surgery, and at 1 and 3 months after surgery, optical coherence tomography (OCT) and CDI were performed. Retinal thickness and retinal circulation were calculated by OCT and CDI, respectively. The fellow, untreated eye served as a control. Results: No chorioretinal anastomosis developed at the RON site in any of the four patients. In all eyes undergoing RON, at three months after surgery, macular thickness was reduced (range, 63–81%), the resistive index (RI) in the central retinal artery was reduced (range, 4–16%) and minimum velocity (Vmin) in the central retinal artery had improved (range, 1.5–211%) as compared to before surgery. In fellow eyes, there were no changes in RI or Vmin before versus after surgery. Conclusions: Our results suggest that RON in CRVO can improve retinal circulation and cystoid macular edema.

Keywords: vascular occlusion/vascular occlusive disease • imaging/image analysis: clinical • vitreoretinal surgery 
×
×

This PDF is available to Subscribers Only

Sign in or purchase a subscription to access this content. ×

You must be signed into an individual account to use this feature.

×