Table 3.

Fixation Preference Testing and Inter-Ocular Difference for All Children Age 30−71 Months

	Fixation Preference Testing Category
IOD Level	Normal		Likely Normal		Momentary		No Fixation		Total
	30−47#	48−71	30−47	48−71	30−47	48−71	30−47	48−71	30−47	48−71
0−1 lines	474 (99.4)	893 (98.7)	1 (0.2)	6 (0.7)	2 (0.4)	3 (0.3)	0	3 (0.3)	477 (100)	905 (100)
2 lines	9 (100.0)	22 (91.7)	0	0	0	2 (8.3)	0	0	9 (100)	24 (100)
≥ 3 lines	4 (100.0)	10 (62.5)	0	1 (6.3)	0	1 (6.3)	0	4 (6.3)	4 (100)	16 (100)
Total	487 (99.4)	925 (97.9)	1 (0.2)	7 (0.7)	2 (0.4)	6 (0.6)	0	7 (0.7)	490 (100.0)	945 (100.0)
Missing VA in at least one eye	220	23	4	0	2	0	2	3	249*	30**

# = months

IOD = Interocular acuity difference, VA = visual acuity

^*21 are missing both fixation preference testing and visual acuity

^**4 missing both fixation preference testing and visual acuity