Table 1.

Baseline Demographic and Clinical Characteristics (N=84)

	n (%)
Gender: Female	39 (46)
Race / Ethnicity
White	63 (75)
African-American	7 (8)
Hispanic or Latino	7 (8)
Asian	3 (4)
American Indian/Alaskan Native	1 (1)
More than one race	3 (4)
Age
3 to <4 years	7 (8)
4 to <5 years	25 (30)
5 to <6 years	35 (42)
6 to <7 years	17 (20)
Mean (SD*) years	5.2 (0.9)
Best-Corrected Distance Visual Acuity in Amblyopic Eye
20/250	1 (1)
20/200	2 (2)
20/160	5 (6)
20/125	10 (12)
20/100	13 (15)
20/80	16 (19)
20/63	19 (23)
20/50	9 (11)
20/40	9 (11)
Mean (SD) logMAR†, Snellen equivalent	0.60 (0.19), 20/80
Best-Corrected Distance Visual Acuity in Sound Eye
20/32	14 (17)
20/25	14 (17)
20/20	47 (56)
20/16	9 (11)
Mean (SD) logMAR, Snellen equivalent	0.04 (0.09), 20/20-2
Interocular Acuity Difference Mean (SD) lines	5.6 (2.1)
Refractive Error in Amblyopic Eye
-4.00D to <0	4 (5)
0 to <+1.00D‡	1 (1)
+1.00 to <+2.00D	4 (5)
+2.00 to <+3.00D	3 (4)
+3.00 to <+4.00D	9 (11)
≥+4.00D	63 (75)
Mean (SD) spherical equivalent	4.51 (2.07)
Refractive Error in Sound Eye
-0.50D to <0	3 (4)
0 to <+1.00D	18 (21)
+1.00 to <+2.00D	40 (48)
+2.00 to <+3.00D	13 (15)
3+.00 to <+4.00D	6 (7)
≥+4.00D	4 (5)
Mean (SD) spherical equivalent	1.57 (1.17)
Anisometropia definition met
Cylinder only (≥1.50D difference)	3 (4)
Spherical equivalent only (≥0.50D difference)	67 (80)
Spherical equivalent and cylinder	14 (17)
Anisometropia (calculated difference in spherical equivalent) at enrollment§
0.50 to <1.00D	7 (9)
1.00 to <2.00D	11 (14)
2.00 to <3.00D	13 (16)
3.00 to <4.00D	24 (30)
≥4.00D	26 (32)
Mean (SD) spherical equivalent	3.21 (1.46)

^*SD = Standard Deviation

^†logMAR = logarithm of the minimum angle of resolution

^‡D=diopte r

^§3 patients meeting cylinder criteria only are excluded