Table 2

ERG data (mean(SEM))

Control (n=23)Goggle (n=23)95% Confidence interval for differenceP value
Postnatal age ERG done (days)61 (3)59 (4)0.72
Gestational age ERG done (weeks)36.6 (0.3)36.2 (0.3)0.33
Duration of goggle wear30.9 (1.2)
Duration of standard nursery light exposure before
 ERG (days)
61 (3)28 (3)< 0.001
Rod log threshold (log scot td-sec)−0.11 (0.08)−0.04 (0.09)−0.31 to 0.170.56
Rod log k (log scot td-sec) 0.86 (0.08) 0.80 (0.09)−0.18 to 0.300.62
Rod log Vmax (log μV) 1.32 (0.04) 1.20 (0.04)−0.004 to 0.240.06
Cone log threshold (log phot td-sec)−0.11 (0.06)−0.07 (0.06)−0.21 to 0.130.62