Table 6.
Percentile Composite Amplitude (Degrees) of Fast Fixation Eye Movements of Fellow Eye and Amblyopic Eye during Dichoptic Viewing Across the Four Groups
| Percentile | FE contrast | Group 0 | Group 1 | Group 2 | Group 3 | Main effect | Interaction |
|---|---|---|---|---|---|---|---|
| 25th | 100% | 0.37 ± 0.15 (0.35 ± 0.09) | 0.32 ± 0.13 (0.31 ± 0.15) | 0.41 ± 0.14 (0.41 ± 0.16) | 0.72 ± 0.95 (0.79 ± 0.98) | F = 5.1, P = 0.003, ηp2 = 0.15 * (F = 2.9, P = 0.04, ηp2 = 0.08) † * = 100% vs. 10%, P = 0.01, † = 100% vs. 10%, P = 0.02 | F = 1.8, P = 0.096, ηp2 = 0.15 (F = 0.87, P = 0.54, ηp2 = 0.080) |
| 50% | 0.33 ± 0.13 (0.35 ± 0.20) | 0.29 ± 0.10 (0.30 ± 0.11) | 0.49 ± 0.18 (0.48 ± 0.17) | 0.66 ± 0.84 (0.73 ± 0.86) | |||
| 25% | 0.35 ± 0.14 (0.35 ± 0.18) | 0.37 ± 0.12 (0.35 ± 0.13) | 0.49 ± 0.17 (0.49 ± 0.17) | 0.66 ± 0.77 (0.75 ± 0.79) | |||
| 10% | 0.37 ± 0.14 (0.37 ± 0.13) | 0.38 ± 0.18 (0.38 ± 0.20) | 0.54 ± 0.25 (0.50 ± 0.20) | 0.80 ± 0.80 (0.84 ± 0.82) | |||
| 50th | 100% | 0.48 ± 0.17 (0.45 ± 0.12) | 0.46 ± 0.18 (0.43 ± 0.22) | 0.60 ± 0.26 (0.59 ± 0.24) | 0.89 ± 1.1 (1.0 ± 1.2) | F = 5.2, P = 0.004, ηp2 = 0.15 * (F = 5.6, P = 0.002, ηp2 = 0.16) † * = 100% vs. 10%, P = 0.01 100% vs. 25%, P = 0.01 † = 100% vs. 10%, P = 0.005 100% vs. 25%, P = 0.004 | F = 1.1, P = 0.39, ηp2 = 0.098 (F = 1.0, P = 0.43, ηp2 = 0.093) |
| 50% | 0.49 ± 0.31 (0.46 ± 0.27) | 0.44 ± 0.17 (0.45 ± 0.19) | 0.68 ± 0.25 (0.68 ± 0.26) | 0.83 ± 1.0 (0.97 ± 1.1) | |||
| 25% | 0.48 ± 0.24 (0.47 ± 0.23) | 0.57 ± 0.22 (0.58 ± 0.25) | 0.68 ± 0.23 (0.68 ± 0.24) | 0.97 ± 1.2 (1.2 ± 1.4) | |||
| 10% | 0.47 ± 0.17 (0.48 ± 0.16) | 0.57 ± 0.32 (0.55 ± 0.31) | 0.75 ± 0.32 (0.75 ± 0.31) | 1.0 ± 0.91 (1.1 ± 0.91) | |||
| 75th | 100% | 0.60 ± 0.23 (0.60 ± 0.19) | 0.72 ± 0.47 (0.69 ± 0.49) | 0.83 ± 0.40 (0.87 ± 0.38) | 1.1 ± 1.3 (1.3 ± 1.4) | F = 3.4, P = 0.02, ηp2 = 0.10* (F = 3.7, P = 0.01, ηp2 = 0.11) † * = 100% vs. 10%, P = 0.02 100% vs. 25%, P = 0.01 † = 100% vs. 10%, P = 0.04 100% vs. 25%, P = 0.03 | F = 0.57, P = 0.82, ηp2 = 0.054 (F = 0.55, P = 0.80, ηp2 = 0.052) |
| 50% | 0.63 ± 0.36 (0.57 ± 0.28) | 0.79 ± 0.38 (0.73 ± 0.35) | 0.96 ± 0.41 (0.98 ± 0.38) | 1.1 ± 1.3 (1.3 ±1.4) | |||
| 25% | 0.62 ± 0.29 (0.58 ± 0.28) | 0.86 ± 0.33 (0.81 ± 0.35) | 1.0 ± 0.39 (1.1 ± 0.45) | 1.3 ± 1.6 (1.5 ± 1.7) | |||
| 10% | 0.65 ± 0.24 (0.65 ± 0.22) | 0.82 ± 0.46 (0.81 ± 0.48) | 1.1 ± 0.56 (1.1 ± 0.61) | 1.4 ± 1.0 (1.5 ± 1.0) | |||
| 90th | 100% | 0.71 ± 0.22 (0.76 ± 0.20) | 1.1 ± 0.81 (1.0 ± 0.76) | 1.1 ± 0.53 (1.2 ± 0.54) | 1.4 ± 1.5 (1.7 ± 1.7) | F = 3.0, P = 0.03, ηp2 = 0.09* (F = 2.9, P = 0.04, ηp2 = 0.08) † * = 100% vs. 10%, P = 0.05 †= 100% vs. 10%, P = 0.03 | F = 0.79, P = 0.60, ηp2 = 0.074 (F = 0.57, P = 0.80, ηp2 = 0.054) |
| 50% | 0.71 ± 0.36 (0.68 ± 0.33) | 1.2 ± 0.69 (1.2 ± 0.80) | 1.3 ± 0.61 (1.6 ± 1.7) | 1.4 ± 1.6 (1.6 ± 1.7) | |||
| 25% | 0.74 ± 0.35 (0.72 ± 0.34) | 1.2 ± 0.55 (1.2 ± 0.63) | 1.4 ± 0.63 (1.5 ± 0.63) | 1.6 ± 2.0 (2.0 ± 2.3) | |||
| 10% | 0.83 ± 0.35 (0.82 ± 0.35) | 1.2 ± 0.54 (1.3 ± 0.80) | 1.6 ± 0.97 (1.7 ± 0.96) | 1.7 ± 1.1 (2.0 ± 1.0) |
FE = Fellow eye contrast varied at 100%, 50%, 25%, and 10% while amblyopic eye contrast was at 100% for all dichoptic viewing trials.
All the values in parenthesis are for amblyopic eye. Post hoc Bonferroni correction was performed with P < 0.05 indicated by * for FE and † for AE data in parenthesis. Group 0 = controls, group 1 = anisometropic amblyopia, group 2 = mixed/strabismic amblyopia without fusion maldevelopment nystagmus, and group 3 = mixed/strabismic amblyopia with fusion maldevelopment nystagmus.