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. 2001 Jun;85(6):683-5.
doi: 10.1136/bjo.85.6.683.

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

J Larsson  1 , S Andréasson
Affiliations

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

J Larsson et al. Br J Ophthalmol. 2001 Jun.

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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Figures

Figure 1
Figure 1
30 Hz flicker electroretinogram from a typical non-rubeotic eye (above) and a rubeotic eye (below) after central retinal vein occlusion. Each panel contains two averaged curves generated from 20 sweeps. The arrows demonstrate the cone b-wave implicit time in the dark adapted 30 Hz flickering ERG (left column) and light adapted 30 Hz flickering ERG (right column).
Figure 2
Figure 2
The b-wave implicit times and amplitudes in the photopic and the scotopic 30 Hz flicker ERG for the rubeotic and the non-rubeotic eyes.
See this image and copyright information in PMC

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