PURPOSE To assess local retinal function of macula in patients with central serous chorioretinopathy (CSC). METHODS Multifocal electroretinograms (ERGs) were recorded in 5 patients with unilateral CSC and 20 normal subjects. The waveforms from the central retina within 5 degrees of visual angle were analyzed. The first negative trough was designated as N1, the first positive peak as P1, and t...

We investigated the effect of artificial parafoveal scotomata on the multifocal electroretinogram (M-ERG). M-ERGs were recorded from normal subjects using a monitor with several different sizes of black paper attached. A lower response density area around the 10 to 15 degree parafoveal region was not recognized for scotomata up to 3 degrees but was observed in scotomata above 5 degrees (visual ...

Abstract Background The nasal to temporal amplitudes ratio (N/T) of multifocal electroretinography (mfERG) scans measured within 5° the macula can be used detect glaucomatous change. photopic negative response (PhNR) mfERG elicited by a circular stimulus centered on fovea was significantly reduced in eyes with glaucoma. PhNR B-wave (PhNR/B) is optimal measure PhNR. However, clinical superiority...

In order to evaluate the function of the retina in Best macular dystrophy (BMD) 18 patients were examined by means of the multifocal electroretinogram (mfERG). The mfERG peak amplitudes of the central and pericentral responses were significantly reduced in the BMD patients (p<0.001). The ERG amplitude decrease of the central response was significantly correlated with visual acuity loss and with...