Table 1.

Orthoptic screening.

	NPC			Divergence range		Convergence range		CISS score
Subject	Before	After		Before	After	Before	After	Before	After
1	5	5	Far	4	4	10	16	21	19
			Near	10	10	30	30
2	8	5	Far	16	16	18	25	30	13
			Near	18	18	35	35
3	6	5	Far	8	8	10	40	35	4
			Near	12	12	16	40
4	15	–	Far	6	–	6	–	34	17
			Near	10	–	12	–
5	5	3	Far	4	4	14	25	32	21
			Near	6	6	30	40
6	5	6	Far	4	6	16	16	13	9
			Near	8	8	20	25
7	5	5	Far	6	4	14	40	32	31
			Near	14	12	25	25
8	5	5	Far	6	10	20	20	26	12
			Near	12	14	25	25
9	10	5	Far	6	6	8	20	25	12
			Near	6	14	12	18
Mean (±SD)	7 (±3)	5 (±1)	Far	7 (±4)	7 (±4)	13 (±5)	25 (±10)	27.6 (±7.1)	15.3 (±7.8)
			Near	11 (±4)	12 (±4)	23 (±8)	30 (±8)