Oscillatory Potentials-Reply
Abstract
Abstract In Reply. —I agree with Dr Lachapelle that the use of a high-pass filter with a cutoff set at 100 cps might have significantly reduced the variability of our data. We chose a 20-cps cutoff in order to reproduce as closely as possible the original protocol described by Simonsen1 in his seminal work on the electroretinogram as a prognostic tool in a diabetic retinopathy. We were concerned that a failure to confirm his findings might otherwise have been attributable to...