Figure 5.

A–F, Response families of transretinal ERG recordings from WT (A), Grk1^−/− (B), Rpe65^−/− (C, E), and Rpe65^−/−Grk1^−/− (D, F) mice. Responses in E and F were recorded after application of 11-cis-retinal. Flashes of white light were delivered at time 0 in 0.5 log incremental steps except for the last three traces in C, which were delivered in twofold increments by doubling the flash duration. The dimmest flashes were delivered at −1.5 log (C, D), and −4.5 log (A, B, E, and F) unit attenuation.