TABLE 2B.
Vergence/Accommodative Therapy (N = 71) | Placebo Therapy (N = 37) | Overall (N = 108) | |
---|---|---|---|
Age (years), mean (SD) | 10.9 (1.4) | 10.8 (1.5) | 10.9 (1.4) |
Sex, female, N (%) | 41 (58) | 15 (41) | 56 (52) |
White Race, N (%) | 44 (62) | 19 (51) | 63 (58) |
Hispanic or Latino Ethnicity, N (%) | 26 (37) | 12 (32) | 38 (35) |
Convergence Insufficiency Symptom Survey (CISS) score, mean (SD) | 30.2 (9) | 31.2 (8.9) | 30.6 (9) |
Monocular Accommodative Amplitude (D), mean (SD) | 9.5 (3.4) | 8.5 (3.6) | 9.2 (3.5) |
Monocular Accommodative Facility (cpm), mean (SD) | 2.9 (1.9) | 2.7 (1.9) | 2.8 (1.9) |
Exodeviation at distance (Δ), mean (SD) | −1.4 (2.2) | −0.9 (1.6) | −1.3 (2) |
Exodeviation at near (Δ), mean (SD) | −9.1 (3.6) | −8.6 (4.3) | −8.9 (3.8) |
Near Point of Convergence Break (cm), mean (SD) | 14.9 (8.7) | 15.5 (8.2) | 15.1 (8.5) |
Positive Fusional Vergence Blur/Break† (Δ), mean (SD) | 10.8 (4.1) | 11.1 (4) | 10.9 (4.1) |
The blur finding was used, but if blur was not reported, the break finding was used.
SD = standard deviation; D = diopters; cpm = cycles per minute; Δ = prism diopters