What are the key components of an Electroretinogram?
An ERG consists of multiple waveforms, with the two most significant components being the a-wave and the b-wave. The a-wave represents the initial negative deflection and is primarily associated with the photoreceptor cells. The b-wave follows as a positive deflection and is linked to the activity of the inner retinal cells, particularly the bipolar and Müller cells. Changes in these waveforms can indicate specific types of retinal dysfunction caused by toxic exposure.
