Full‐field electroretinograms during general anesthesia in normal children compared to examination with topical anesthesia

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Abstract
Full‐field electroretinograms were obtained from 20 normal children during general anesthesia and compared with electroretinograms obtained with topical anesthesia. Disoprofol and fentanyl induced a reduction in the b‐wave amplitudes and an increase in the cone b‐wave implicit time, but the changes were small and fall within the range limits seen with topical anesthesia (i.e., average ± 2 sd).