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Br J Ophthalmol 2001;85:683-685 doi:10.1136/bjo.85.6.683
  • Scientific correspondence

Photopic 30 Hz flicker ERG as a predictor for rubeosis in central retinal vein occlusion

  1. Jörgen Larsson,
  2. Sten Andréasson
  1. Department of Ophthalmology, University Hospital, Lund, Sweden
  1. Jörgen Larsson, Department of Ophthalmology, University Hospital, 221 85 Lund, SwedenJorgen.Larsson{at}oft.lu.se
  • Accepted 11 January 2001

Abstract

AIMS To investigate the predictive value of the cone b-wave implicit time in the photopic compared with the scotopic 30 Hz flicker ERG for rubeosis in central retinal vein occlusion.

METHODS 44 patients with a central retinal vein occlusion were examined with full field electroretinogram (ERG).

RESULTS The average implicit time in the photopic 30 Hz flicker ERG in patients who developed rubeosis (n=15) was 38.3 ms. In the patients who did not develop rubeosis (n=29) it was 31.3. The difference is statistically significant (p=0.0000000004).

CONCLUSION The photopic cone b-wave implicit time in the 30 Hz flicker ERG is a good predictor for rubeosis.

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