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. Author manuscript; available in PMC: 2013 Jan 1.
Published in final edited form as: Ophthalmology. 2011 Sep 29;119(1):150–158. doi: 10.1016/j.ophtha.2011.06.043

Table 2. Ocular Alignment at Distance: Screening Visit (no correction) vs. Spectacle-corrected at Baseline Visit.

Cause of Amblyopia
Combined (N=94) Strabismus Only (N=52)
Alignment at Baseline Alignment at Baseline
0 Δ 1-8 Δ >8 Δ 0 Δ 1-8 Δ >8 Δ
N=18 N=50 N=26 N=13 N=16 N=23
Alignment at Screening
0 Δ n (%) 6 (33%) 3 (6%) 0 1 (8%) 0 0
1-8 Δ n (%) 8 (44%) 36 (72%) 2 (8%) 3 (23%) 8 (50%) 2 (9%)
>8 Δ n (%) 4 (22%) 11 (22%) 24 (92%) 9 (69%) 8 (50%) 21 (91%)
Mean Improvement in angle (SD) 3.5 Δ (7.4) 5.8 Δ (7.7)
Median Improvement (P25, P75) 1.0 Δ (0.0, 5.0) 4.0 Δ (0.0, 10.0)
Wilcoxon Signed Rank test P-value P<0.001 P<0.001

Δ = prism diopter; SD = standard deviation; P25 = 25th percentile; P75 = 75th percentile