Purchase this article with an account.
S. Yamamoto, K. Ogata, M. Hayashi, S. Mizunoya; Investigations of Multifocal Oscillatory Potentials After Macular Hole Surgery With Internal Limiting Membrane Peeling . Invest. Ophthalmol. Vis. Sci. 2006;47(13):1489.
Download citation file:
© ARVO (1962-2015); The Authors (2016-present)
To determine the changes of retinal function electrophysiologically after macular hole (MH) surgery with internal limiting membrane (ILM) peeling.
Multifocal electroretinograms (mfERGs) were recorded preoperatively and 3 months after surgery from 11 eyes of 10 patients with an idiopathic MH treated successfully by pars plana vitrectomy accompanied by ILM peeling. A low frequency (9.4 Hz) pseudorandom binary m–sequence stimulus was used to elicit ERGs from different retinal loci. The bandpass of the amplifier was set at 10 to 300 Hz to record the mfERGs and at 100 to 300 Hz to record the oscillatory potentials (OPs).
An anatomical closure of MH was achieved in all patients, and the mean visual acuity was significantly improved postoperatively. No significant difference was observed in both the amplitudes and implicit times of the negative and positive waves of the mfERGs and the OPs between those recorded preoperatively and those recorded postoperatively.
MH surgery associated with ILM peeling does not alter the electrophysiological function of both the outer and inner retina of the posterior pole where the ILM was removed.
This PDF is available to Subscribers Only