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Origins of ERG waves. (a) Typical full-field ERG waveform. (b) Schematic diagram of retinal structure. (c) The full-field ERG of a cat in response to a 2-s light stimulus. The three components PI, PII, and PIII have been isolated by deepening the state of anesthesia. (a) and (b) are reprinted with permission from Ref. 139. (c) is reprinted with permission from Ref. 138.
