Focal Macular Electroretinogram in Macular Edema Secondary to Central Retinal Vein Occlusion

Abstract

In eyes with CRVO, amplitudes and latencies of the fmERG correlated with other biological parameters. Based on the present study, fmERG appears to be useful for the examination of the macular edema that accompanies CRVO.

Early impairment of the full‐field photopic negative response in patients with Stargardt disease and pathogenic variants of the ABCA4 gene

“…Interestingly, while we found that both B‐wave and PhNR amplitudes correlated with altered BCVA in Stargardt patients, only the PhNR amplitude was commonly out of the normal range in Stargardt patients, suggesting that this ERG component might reflect a relatively higher macular contribution than the B‐wave. An over‐representation of the macula has already been reported for the PhNR of focal ERGs . In this study, however, the PhNR amplitude did not show any significant association with focal flicker (41 Hz), central (18°) ERG amplitude, implying that these responses may display different physiological characteristics.…”

Intravitreal Injection of Ranibizumab for Recovery of Macular Function in Eyes With Subfoveal Polypoidal Choroidal Vasculopathy

“…24,25 Briefly, after maximal dilatation of both eyes, a Burian-Allen bipolar contact lens electrode (Hansen Ophthalmic Laboratories, Iowa City, IA) was placed in the conjunctival sac of each eye under topical anesthesia. A chloride silver electrode was attached to the left earlobe to serve as the ground electrode.…”

“…23 More recently, we demonstrated the usefulness of fmERG in evaluating macular function in cases of macular edema associated with retinal vein occlusion. 24,25 Although several investigators evaluated the efficacy of IVR in the treatment of PCV, all relied solely upon VA for the evaluation of retinal function. 6,7,[26][27][28][29] However, some studies reported the successful use of fmERG in the evaluation of AMD patients, some of whom also had PCV.…”

Evaluation of Macular Function Using Focal Macular Electroretinography in Eyes with Macular Edema Associated with Branch Retinal Vein Occlusion

“…Recording of fmERG has been reported in detail previously. 26 Briefly, after the pupils of both eyes were maximally dilated, a Burian-Allen bipolar contact lens electrode (Hansen Ophthalmic Laboratories, Iowa city, IA) was placed in the conjunctival sac of each eye under topical anesthesia. A chloride silver electrode was attached to the left earlobe as a ground electrode.…”