Table 2.

Frisby Davis Distance (FD2) and Distance Randot (DR) stereoacuity measured over one day in children with intermittent exotropia.

	Time 1 FD2		Time 2 FD2		Time 3 FD2		Time 4 FD2		Time 1 DR		Time 2 DR		Time 3 DR		Time 4 DR
Patient number	08:00–10:30		10:31–13:00		13:01–15:30		15:31–18:00		08:00–10:30		10:31–13:00		13:01–15:30		15:31–18:00
	Secarc	Log	Secarc	Log	Secarc	Log	Secarc	Log	Secarc	Log	Secarc	Log	Secarc	Log	Secarc	Log
1	20	1.30	-	-	40	1.60	20	1.30	60	1.78	-	-	60	1.78	200	2.30
†2	80	1.90	20	1.30	40	1.60	40	1.60	100	2.00	100	2.00	100	2.00	100	2.00
3	40	1.60	40	1.60	40	1.60	80	1.90	60	1.78	60	1.78	60	1.78	60	1.78
†*4	40	1.60	40	1.60	200	2.30	80	1.90	nil	2.90	nil	2.90	200	2.30	nil	2.90
5	20	1.30	20	1.30	40	1.60	20	1.30	200	2.30	200	2.30	60	1.78	100	2.00
†*6	20	1.30	80	1.90	20	1.30	20	1.30	400	2.60	60	1.78	60	1.78	60	1.78
*7	40	1.60	40	1.60	20	1.30	20	1.30	200	2.30	400	2.60	400	2.60	60	1.78
8	20	1.30	20	1.30	20	1.30	20	1.30	60	1.78	-	-	60	1.78	60	1.78
†*9	40	1.60	160	2.20	20	1.30	40	1.60	nil	2.90	nil	2.90	200	2.30	200	2.30
10	20	1.30	20	1.30	20	1.30	40	1.60	60	1.78	60	1.78	60	1.78	60	1.78
11	40	1.60	20	1.30	40	1.60	20	1.30	nil	2.90	nil	2.90	nil	2.90	nil	2.90
13	20	1.30	20	1.30	20	1.30	40	1.60	60	1.78	60	1.78	60	1.78	60	1.78

^*= patients with variable distance stereoacuity (defined as a change of 2 or more log levels (≥ 0.6 log seconds of arc) over the day) using the Distance Randot test.

^†= patients with variable distance stereoacuity (defined as a change of 2 or more log levels (≥ 0.6 log seconds of arc) over the day) using the Frisby Davis Distance test.

^-= not tested