Table 2.

Baseline Data for all Randomized Patients

	Atropine Only N=90	Atropine + Plano Lens N=90
	n (%)	n (%)
Gender: Female	47 (52)	47 (52)
Race/Ethnicity
White	75 (83)	70 (78)
African-American	1 (1)	4 (4)
Hispanic or Latino	12 (13)	14 (16)
Asian	1 (1)	2 (2)
Unknown/Not reported	1 (1)	0
Age at Enrollment
3 to <4 years	14 (16)	11 (12)
4 to <5 years	24 (27)	30 (33)
5 to <6 years	29 (32)	29 (32)
6 to <7 years	23 (26)	20 (22)
Mean (SD)	5.2 (1.1)	5.1 (1.0)
Prior Treatment for Amblyopia at Enrollment
None	76 (84)	72 (80)
Patching	9 (10)	12 (13)
Atropine	1 (1)	2 (2)
Patching and Atropine*	4 (4)	4 (4)
Cause of Amblyopia
Strabismus	38 (42)	37 (41)
Anisometropia	32 (36)	30 (33)
Strabismus and anisometropia	20 (22)	23 (26)
Distance Visual Acuity in Amblyopic Eye
20/100	7 (8)	15 (17)
20/80	14 (16)	15 (17)
20/63	29 (32)	28 (31)
20/50	24 (27)	17 (19)
20/40	16 (18)	15 (17)
Mean (SD) logMAR	0.47 (0.12)	0.50 (0.13)
Snellen Equivalent	20/63	20/63
Distance Visual Acuity in Sound Eye
20/40	3 (3)	3 (3)
20/32	18 (20)	18 (20)
20/25	27 (30)	28 (31)
20/20	31 (34)	33 (37)
20/16	11 (12)	8 (9)
Mean (SD) logMAR	0.07 (0.10)	0.07 (0.10)
Snellen Equivalent	20/25	20/25
Intereye Acuity Difference
Mean (SD) logMAR lines	4.0 (1.2)	4.3 (1.3)
Refractive Error in Amblyopic Eye (sph equiv)
0 to < +1.00D	1 (1)	0
+1.00 to <+2.00D	0	6 (7)
+2.00 to <+3.00D	8 (9)	6 (7)
+3.00 to <+4.00D	13 (14)	15 (17)
≥+4.00D	68 (76)	63 (70)
Mean (SD) D	+ 4.99 (1.66)	+4.94 (1.81)
Refractive Error in Sound Eye (sph equiv)
+1.50 to <+2.00D	17 (19)	23 (26)
+2.00 to <+3.00D	14 (16)	19 (21)
+3.00 to <+4.00D	20 (22)	12 (13)
≥+4.00D	39 (43)	36 (40)
Mean (SD) D	+3.71 (1.71)	+3.54 (1.86)

^*One of these patients received atropine + patching + fogging SD = standard deviation; D = diopters; logMAR = logarithm of the minimum angle of resolution; sph equiv = spherical equivalent