Figure 5. Scotopic electroretinographic recordings four weeks after optic nerve transection. Examples of the ERG traces recorded in an albino (A) and pigmented (B) rats in response to flash stimuli of increasing intensity four weeks after optic nerve transaction. Thin traces correspond to the unoperated right eye and bold traces correspond to the operated left eye. The intensity of the flash stimuli is indicated to the left of the recording traces. Reduced pSTR and nSTR responses from operated eyes versus control eyes were clearly observed for both strains, while an apparent recovery of the ERG wave amplitudes was observed for the scotopic and mixed responses in the albino rats.