Table 3.

The mean difference of pre- and postoperative far and near deviations in convergence excess ET cases and their controls

Factors	ET' $>$ ET $\ge$10pd		P-value$‡$
	Slanted	Augmented
N	26	25
Pre-op. difference	Mean $\pm$ SD	16.46 $\pm$ 5.97	13.56 $\pm$ 4.4	0.074
	Median (range)	15 (9 to 35)	10 (10 to 20)
Post-op. difference	Mean $\pm$ SD	3.81 $\pm$ 3.54	4.92 $\pm$ 4.04	0.275
	Median (range)	4 (0 to 12)	6 (0 to 13)
Reduction	Mean $\pm$ SD	–12.65 $\pm$ 6.16	–8.64 $\pm$ 6.1	0.014
	Median (range)	–12 (–35 to –5)	–8 (–20 to 2)
Dose response	Mean $\pm$ SD	–6.29 $\pm$ 3.38	–5.99 $\pm$ 3.49
	Median (range)	–5.21 (–16 to –1.6)	–7 (–10 to 2)
Success rate (%)**		58%	28%
ET, far esotropia; ET', near esotropia; pd, prism diopter; N, number; Op, operation;
SD, standard deviation; P, probability
$‡$Based on Mann–Whitney test
**Success rate was defined as the postoperative far and near deviations less than 10 pd, which was stricter compared with the consideration of $<$ 10 pd difference between the far and near deviations