borderline significantp = 0.059
Age did not significantly reduce baseline amplitude among those eyes with prolonged baseline latency (reduction of 0.11 μV/year; 95% CI −0.09 to 0.31 μV/year; p = 0.29), but when all eyes were included, there was a borderline significant age‐dependent reduction in amplitude (by 0.16 μV/year; 95% CI 0.00 to 0.33 μV/year; p = 0.059).