The effects of fundus photography on the multifocal electroretinogram
To determine the effect of flash fundus photography (FFP) on the multifocal electroretinogram (mfERG).
Ten subjects underwent mfERG testing on three separate dates. Subjects received either mfERG without FFP, mfERG at 5 and 15 min after FFP, or mfERG at 30 and 45 min after FFP on each date. The FFP groups received 10 fundus photographs followed by mfERG testing, first of the right eye then of the left eye 10 min later. Data were averaged and analyzed in six concentric rings at each time point. Average amplitude and implicit times of the N1, P1, and N2 peaks for each concentric ring at each time point after FFP were compared to baseline.
Flash fundus photography did not lead to a significant change of amplitude or implicit times of N1, P1, or N2 at 5 min after light exposure.
These findings suggest that it is acceptable to perform mfERG testing without delay after performance of FFP.
KeywordsMultifocal electroretinogram mfERG Fundus photography Electroretinography
Supported in part by an Unrestricted Grant from Research to Prevent Blindness, New York, NY and Minnesota Lions Club (MSL, LKM).
Compliance with ethical standards
Conflict of interest
All procedures performed involving human participants were in accordance with the ethical standards of the institutional review board and with the 1964 Helsinki declaration and its later amendments.
- 8.Kondo M, Miyake Y, Piao CH et al (1999) Amplitude increase of the multifocal electroretinogram during light adaptation. Investig Ophthalmol Vis Sci 40:2633–2637Google Scholar