Table 2.

Vision and motor outcomes:

	N‡
Visual outcomes
Motion coherence threshold %, mean (SD)	606	55 (22.0)
Stereoacuity, N(%)
<100 secs of arc		476 (78.54)
>100 – 800 secs of arc	606	84 (13.86)
>800# secs of arc		46 (7.59)
Visual acuity, N(%)
≤ 0.3 logMAR	606	578 (95.37)
> 0.3 logMAR		28 (4.62)
Motor outcomes (mean, SD)
Beery VMI percentile	600	51.3 (20.14)
Beery VP percentile	597	42.4 (28.11)
Beery MC percentile	593	33.9 (22.44)
Fine motor control percentile§	594	36.3 (27.78)
Gross motor control percentile§	587	43.8 (22.12)
Total motor control percentile§	594	37.8 (26.89)

Abbreviations:

^‡N: number of children for whom data were available. Not all study participants provided responses in all categories.

^#includes children who had no measureable stereoacuity. VMI – visual motor integration, VP – visual perception, MC – motor coordination.

^§See main text for the details of this calculation.