The Pattern Electroretinogram (PERG) is a biological potential that is evoked from the retina upon viewing a temporally modulated stimulus pattern of constant total luminance. Typically, PERG recordings are limited by the method of conveying the stimulus. This paper presents an alternative method to generate PERG stimuli utilizing Light Emitting Diodes (LEDs) and optical diffusing materials. The proposed stimulator will allow for the recording of PERG waveforms at much higher rates than are capable with conventional stimulators. Also, the proposed stimulator will be able to take advantage of advanced analysis techniques, such as the recently developed Continuous Loop Averaging Deconvolution (CLAD) algorithm.