Table 2. .

PLR Constriction Amplitudes as a Function of Age and Stimulus Intensity

Stimulus Intensity, Log Photons/cm2/s	Age, mo
	4	6	8	10	12
	Constriction Amplitude, %
8	1.05 ± 0.61	1.24 ± 0.88	1.81 ± 1.21	1.36 ± 0.69	1.86 ± 1.5
8.5	11.94 ± 4.68	8.46 ± 2.95	5.92 ± 4.76	13.46 ± 5.21	7.6 ± 2.73
8.75	18.77 ± 6.33	17.26 ± 5.32	8.48 ± 6.1	24.7 ± 7.65	15.46 ± 4.3
9	28.67 ± 5.28	29.09 ± 5.19	22.3 ± 7.5	31.58 ± 6.37	26.64 ± 6.37
10	40.68 ± 3.05	42.2 ± 4.97	38.81 ± 6.35	43.06 ± 3.73	39.91 ± 3.23
11	50.51 ± 2.52	50.47 ± 3.76	49.69 ± 4.78	51.15 ± 2.88	49.52 ± 2.26
12	57.3 ± 2.56	55.73 ± 3.47	57.28 ± 4.3	57.85 ± 2.35	55.81 ± 1.81
13	58.81 ± 3.34	58.49 ± 3.18	63.01 ± 4.55	62.39 ± 3.47	59.87 ± 2.12
14	64.41 ± 5.23	61.71 ± 3.6	61.83 ± 5.13	63.28 ± 2.71	63.2 ± 3.32
15	65.55 ± 3.96	68.26 ± 3.78	68.67 ± 4.47	68.82 ± 3.4	63.9 ± 3.3

Data shown as percent of baseline pupil area (average ± SEM).