Table 3. .

PLR Parameters as a Function of Stimulus Intensity in Dogs Under CR5

Stimulus Intensity, Log Photons/cm2/s	PLR Parameter, Average ± SEM
	Latency, ms	Constriction Speed, mm/s	Redilation Speed, mm/s	PIPR, %
8	380.56 ± 26.66	0.5 ± 0.08	0.16 ± 0.02	—
8.5	328.47 ± 11.79	1.06 ± 0.14	0.38 ± 0.04	—
8.75	283.33 ± 8.95	1.47 ± 0.16	0.49 ± 0.05	—
9	265.28 ± 6.96	1.93 ± 0.15	0.66 ± 0.06	—
10	228.45 ± 3.74	2.54 ± 0.08	0.91 ± 0.06	4.72 ± 1.57
11	209.43 ± 2.98	2.82 ± 0.06	1.06 ± 0.06	7.29 ± 0.79
12	198.48 ± 3.86	2.69 ± 0.07	0.93 ± 0.06	17.38 ± 2.12
13	191.4 ± 3.78	2.53 ± 0.1	0.85 ± 0.06	26.77 ± 2.99
14	188.69 ± 5.08	2.54 ± 0.11	0.8 ± 0.07	30.71 ± 3.48
15	183.33 ± 3.16	2.28 ± 0.09	0.59 ± 0.05	44.4 ± 3.77

Values from all ages were averaged.