Laser-Induced Porcine Model of Experimental Retinal Vein Occlusion: An Optimized Reproducible Approach

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Retinal vein occlusion (RVO) is a frequent visually disabling condition. The management of RVO continues to challenge clinicians. Macular edema secondary to RVO is often recurrent, and patients typically require intravitreal injections for several years. Understanding molecular mechanisms in RVO is a key element in improving the treatment of the condition. Studying the molecular mechanisms in RVO at the retinal level is possible using animal models of experimental RVO. Most studies of experimental RVO have been sporadic, using only a few animals per experiment. Here, we report on 10 years of experience of the use of argon laser-induced experimental RVO in 108 porcine eyes from 65 animals, including 65 eyes with experimental branch retinal vein occlusion (BRVO) and 43 eyes with experimental central retinal vein occlusion (CRVO). Reproducibility and methods for evaluating and controlling ischemia in experimental RVO are reviewed. Methods for studying protein changes in RVO are discussed in detail, including proteomic analysis, Western blotting, and immunohistochemistry. Experimental RVO has brought significant insights into molecular changes in RVO. Testing intravitreal interventions in experimental RVO may be a significant step in developing personalized therapeutic approaches for patients with RVO.
Original languageEnglish
Article number243
Issue number2
Number of pages15
Publication statusPublished - 27 Jan 2023

Bibliographical note

Publisher Copyright:
© 2023 by the authors.


  • animal model
  • experimental
  • immunohistochemistry
  • mass spectrometry
  • proteome
  • proteomics
  • retina
  • retinal vein occlusion
  • Western blot
  • Reproducibility of Results
  • Tomography, Optical Coherence
  • Retina
  • Animals
  • Swine
  • Lasers
  • Proteomics
  • Retinal Vein Occlusion/complications


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