Table 4.

Best-Measured Acuity in Amblyopic Eye According to Baseline Factors (N=84)

	N	Mean (SD*) Lines Improved from Baseline to Visit of Best- Measured Acuity	P Value†	Resolution at Visit of Best- Measured Acuity (IOD‡ within 1 line) n(%)	P Value†
Age (years)			0.88		0.40
3-<4	7	3.3 (1.8)		1 (14)
4-<5	25	2.5 (1.5)		7 (28)
5-<6	35	3.0 (2.1)		12 (34)
6-<7	17	2.9 (1.6)		3 (18)
Degree of Anisometropia§			0.07		0.03
0.50 to <1.00D ∥	7	3.1 (1.2)		4 (57)
1.00 to <2.00D	11	2.8 (1.5)		5 (45)
2.00 to <3.00D	13	3.5 (1.9)		5 (38)
3.00 to <4.00D	24	2.6 (2.0)		5 (21)
>=4.00D	26	2.8 (1.9)		2 (8)
Baseline Amblyopic Eye Acuity			0.21		0.02
20/40	9	1.3 (1.1)		2 (22)
20/50	9	2.9 (1.1)		6 (67)
20/63	19	3.0 (1.6)		8 (42)
20/80	16	2.8 (1.6)		2 (13)
20/100	13	3.8 (2.2)		4 (31)
20/125	10	3.4 (2.2)		1 (10)
20/160-20/250	8	2.1 (1.7)		0
Anisometropia Definition Met			0.54		0.66
Spherical equivalent only (≥0.50D difference)	67	3.0 (1.9)		17 (25)
Spherical equivalent and cylinder	14	2.4 (1.3)		4 (29)
Cylinder only (≥1.50D difference)	3	2.3 (1.2)		2 (67)

^*SD = Standard Deviation

^†P value for improvement to best-measured acuity outcome from analysis of covariance adjusted for baseline acuity, P value for resolution outcome from logistic regression analysis adjusted for baseline acuity

^‡Interocular acuity difference evaluated using better sound eye at baseline or visit of bestmeasured amblyopic eye acuity

^§3 patients meeting only cylinder criteria are not included

^∥D = diopter

This table does not include data on the additional long-term follow-up visit (4-6 months) for patients whose amblyopia resolved.