Outliers of Treatment Frequency in Retinal Vein Occlusion: 24-Month Comparative Analysis of Fight Retinal Blindness! Practitioners

Clin Exp Ophthalmol. 2025 May-Jun;53(4):409-420. doi: 10.1111/ceo.14490. Epub 2024 Dec 28.

Abstract

Background: We aimed to describe a 2-year outcome of eyes managed by practitioners benchmarked using a funnel plot by their frequency of treatment using vascular endothelial growth factor (VEGF) inhibitors for naive retinal vein occlusion (RVO).

Methods: A multicentre, international, observational study of 29 doctors in 12 countries managing 1110 eyes with RVO commencing VEGF inhibitors between 1 January 2012-2022 tracked in the Fight Retinal Blindness! registry.

Results: We identified 3 outlying 'intensive' practitioners (managing 350/1110 eyes [32%]), 22 'typical' practitioners (604/1110, [54%]) and 4 outlying 'relaxed' practitioners (156/1110, [14%]) with respective 24-month outcomes in Branch and Central RVO including the primary outcome, mean adjusted change in visual acuity (VA) in BRVO: +16.2, +13.6, +9.3 letters (p < 0.01) and CRVO: +14.2, +12.7, +4.8 letters (p < 0.01); adjusted change in macular thickness in BRVO -179, -150, -159 μm (p < 0.01) and CRVO -324, -283, -232 μm (p < 0.01); time-in-range with VA > 68 letters in BRVO 90, 78, 68 weeks (p < 0.01) and CRVO 69, 60, 54 weeks (p = 0.04); median injections 18, 13 and 10; median final injection intervals, BRVO 6, 9, 10 weeks and CRVO 6, 9 and 12 weeks; with no significant difference in adverse outcomes.

Conclusions: At 24 months, the intensive practitioners were treating RVO using VEGF inhibitors with twice the frequency of the relaxed practitioners; however, their patients had gained twice (BRVO) to three times (CRVO) more letters of VA.

Keywords: BRVO; CRVO; macula; occlusion; oedema; retinal; treatment frequency; vein.

Publication types

  • Multicenter Study
  • Observational Study
  • Comparative Study

MeSH terms

  • Aged
  • Angiogenesis Inhibitors* / administration & dosage
  • Angiogenesis Inhibitors* / therapeutic use
  • Bevacizumab / administration & dosage
  • Blindness* / etiology
  • Blindness* / prevention & control
  • Female
  • Follow-Up Studies
  • Humans
  • Intravitreal Injections
  • Male
  • Middle Aged
  • Practice Patterns, Physicians'* / statistics & numerical data
  • Ranibizumab / administration & dosage
  • Registries
  • Retinal Vein Occlusion* / complications
  • Retinal Vein Occlusion* / diagnosis
  • Retinal Vein Occlusion* / drug therapy
  • Retinal Vein Occlusion* / physiopathology
  • Time Factors
  • Tomography, Optical Coherence
  • Treatment Outcome
  • Vascular Endothelial Growth Factor A / antagonists & inhibitors
  • Visual Acuity / physiology

Substances

  • Angiogenesis Inhibitors
  • Vascular Endothelial Growth Factor A
  • Ranibizumab
  • VEGFA protein, human
  • Bevacizumab