Fig. 2: Schematic of LA 3 responses in different conditions with example causes. | Eye

Fig. 2: Schematic of LA 3 responses in different conditions with example causes.

From: Negative electroretinograms: genetic and acquired causes, diagnostic approaches and physiological insights

Fig. 2

A Normal cone system signalling and normal cone system ERG. B In conditions with selective loss of ON bipolar cell signals, the a-wave is broadened, and the b-wave appears to be more sharply rising. C In conditions with loss of both ON and OFF bipolar cell signals (usually due to a presynaptic lesion), the b-wave is more attenuated. Green arrows depict normal transmission; grey arrows depict impaired transmission (grey shading indicates impairment of signal) (Color figure online).

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