Table 4.

 Mean (SD) refractive error and cylinder axis range for refractive error categories

		All groups	Anisometropic hypermetropia (n = 29)	Anisometropic astigmatism (n = 19)	Isometropia (n = 18)
Amblyopic eye	Mean sphere	4.0 (2.1)	4.51 (1.9)	4.34 (2.7)	3.69 (1.64)
	Range sphere	+9.00 to −4.00	+9.00 to +2.00	+7.75 to −4.00	+6.50 to +0.75
	Mean cylinder	−0.91 (1.0)	−0.45 (0.29)	−1.4 (0.87)	−1.1 (0.85)
	Range cylinder	0 to 3.50	0 to 0.50	0.75 to 3.25	0 to 3.50
Fellow eye	Mean sphere	2.7 (1.8)	2.19 (1.19)	2.67 (1.35)	3.37 (1.65)
	Range sphere	+6.50 to 0.00	+6.00 to +0.00	+6.50 to +0.00	+6.00 to +0.75
	Mean cylinder	−0.45 (0.62)	−0.13 (0.19)	−0.71 (0.33)	−0.71 (0.88)
	Range cylinder	0 to 3.00	0 to 0.50	0.75 to 1.25	0 to 3.00