Table 1. Baseline Characteristics of Amblyopic Subjects Participating in this Study of Retinal Nerve Fiber Layer Thickness.
| N=37 n (%)* |
|
|---|---|
| Gender: Female | 19 (51) |
| Race / Ethnicity | |
| White | 14 (38) |
| African-American | 5 (14) |
| Hispanic or Latino | 17 (46) |
| Asian | 0 |
| More than one race | 0 |
| Unknown/Not reported | 1 (3) |
| Age at Enrollment | |
| Mean (SD) [range] | 9.2 (1.5) [7.1 to 12.2] |
| Cause of Amblyopia | |
| Strabismus | 10 (27) |
| Anisometropia | 17 (46) |
| Strabismus and anisometropia | 10 (27) |
| Distance Visual Acuity in Amblyopic Eye | |
| 20/100-20/250 | 4 (11) |
| 20/40-20/80 | 33 (89) |
| Mean (SD) Letter Score [Snellen approximation] | 62 (8) [20/63] |
| Distance Visual Acuity in Fellow Eye | |
| 20/25 | 7 (19) |
| 20/20 | 16 (43) |
| 20/16 | 14 (38) |
| Mean (SD) Letter Score[Snellen approximation] | 86 (3) [20/20] |
| Intereye Acuity Difference | |
| Mean (SD) Difference in Lines | 4.7 (1.8) |
| Refractive Error in Amblyopic Eye | |
| -0.25 to < 0 D | 4 (11) |
| 0 to <+1.00D | 11 (30) |
| +1.00 to <+2.00D | 4 (11) |
| +2.00 to <+3.00D | 2 (5) |
| +3.00 to <+4.00D | 11 (30) |
| +4.00 to +5.00D | 5 (14) |
| Mean (SD) D | +2.03 (1.70) |
| Refractive Error in Fellow Eye | |
| -0.25 to < 0 D | 3 (8) |
| 0 to <+1.00D | 19 (51) |
| +1.00 to <+2.00D | 7 (19) |
| +2.00 to <+3.00D | 6 (16) |
| +3.00 to <+4.00D | 1 (3) |
| +4.00 to +5.00D | 1 (3) |
| Mean (SD) D | +1.03 (1.11) |
| Difference in Refractive Error (Amblyopic minus Fellow) | |
| < 0 D | 7 (19) |
| 0 to <+1.00D | 16 (43) |
| +1.00 to <+2.00D | 5 (14) |
| +2.00 to <+3.00D | 4 (11) |
| +3.00 to <+4.00D | 3 (8) |
| ≥+4.00D | 2 (5) |
| Mean (SD) D | +1.02 (1.47) |
*
n (%) unless otherwise stated
D = diopters, SD = standard deviation