Table 1.

Summary of pharmacological studies and age at time of ERG recordings

Drug treatment	Number of eyes	Number of rats	Ages
Flash ERG with incrementing backgrounds (before versus after TTX)	20	20	11–21 weeks
Transient background (before versus after TTX)	2	2	7–8 weeks
Determining cone-isolation protocol	16	16	13–21 weeks
Photopic versus cone-isolated photopic ERG	4	4	24–26 weeks
Cone-isolated ERG (before and after TTX)	14	14	15–19 weeks
NMDA + TTX	12	10	14–16 weeks
CNQX + TTX	6	4	14–16 weeks
Control versus ONTx	6	6	13–17 weeks
ONTx versus ONTx + TTX	6	6	16–18 weeks