The oscillatory potentials expressed in microwatts were measured under scotopic and photopic conditions.

Studying the oscillatory potentials in diabetic retinopathy, the authors experienced several problems interpreting results of digital filtering.

First, Capt induced a significant decrease in amplitudes of the scotopic b-wave, oscillatory potentials, and the a-wave.

To study the oscillatory potentials in early diabetic retinopathy the authors developed a new power measurement based on the fast Fourier transform.

Increases in osmolarity led to rapid decreases in the amplitudes of the b-wave and oscillatory potentials with little change in the amplitude of the a-wave.

Recently we developed a quantitative method of measuring the Oscillatory Potentials (OP's) for a clinical study in diabetic patients.