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C. Hvarfner, J. Larsson; Electroretinography (erg) In Humans With Hemi Retinal Vein Occlusion. . Invest. Ophthalmol. Vis. Sci. 2004;45(13):5236.
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© ARVO (1962-2015); The Authors (2016-present)
Purpose: To investigate the predictive value of the cone b–wave in the 30–Hz flicker ERG for neovascular complications in hemi retinal vein occlusion. Methods: 25 patients with hemi retinal vein occlusion were examined with 30–Hz flicker ERG and followed up for 48 ± 17months (mean ± SD).Earlier studies have shown that the implicit time in the 30–Hz flicker ERG is a good predictor of neovascular complications in central retinal vein occlusion. Since the full field ERG tests a large retinal area in a standardized way a fairly large area must be affected to give effect on the results. No previous studies of electro physiology in hemi retinal vein occlusion are found in the literature. Results: The cone b–wave implicit time in the eyes that developed neovascular complications (n=6) was 37,7 ± 1,3ms (mean ± SD) and in the eyes that did not develop neovascular complications (n=19) 34,0 ± 4,6ms (mean ± SD) (P=0,005; independent samples test). Conclusions: The cone b–wave implicit time in the 30 Hz–flicker ERG seems to be of prognostic value for neovascular complications in eyes with hemi retinal vein occlusion.
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