Central retinal vein occlusion in a young patient following cannabis smoke inhalation

Federico Corvi, Giuseppe Querques, Rosangela Lattanzio, Chiara Preziosa, Maurizio Battaglia Parodi, Francesco Bandello

Research output: Contribution to journalArticlepeer-review


Purpose: To report a case of central retinal vein occlusion (CRVO) following cannabis smoke inhalation in a young patient. Methods: An otherwise healthy 18-year-old man without risk factors for retinal vein occlusion presented with reduced visual acuity (20/200) secondary to CRVO following cannabis smoke inhalation. Central retinal vein occlusion was diagnosed on the basis of slit-lamp fundus biomicroscopy and fluorescein angiography. Results: Tests for systemic causes were negative. Following one intravitreal dexamethasone implant (Ozurdex) and one ranibizumab injection (Lucentis), functional (20/20 visual acuity) and anatomic improvement was recorded. Fluorescein angiography showed a decrease in the vascular caliber and tortuosity, with no signs of retinal ischemia or edema. Conclusions: We report CRVO in a young adult following cannabis smoke inhalation. Its occurrence immediately after cannabis smoking further supports a link between the use of cannabis and vascular alterations.

Original languageEnglish
Pages (from-to)437-440
Number of pages4
JournalEuropean Journal of Ophthalmology
Issue number3
Publication statusPublished - 2014


  • Cannabis
  • Central retinal vein occlusion
  • Delta-9-tetrahydrocannabinol
  • Ozurdex
  • Ranibizumab

ASJC Scopus subject areas

  • Ophthalmology


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