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Table 1 Preoperative demographic data

From: Comparison of Botulinum toxin type A with surgery for the treatment of intermittent exotropia in children

Variables Total (n = 144) Injections (n = 72) Surgery (n = 72) P
Age (years) 7.1 ± 2.5 7.0 ± 2.6 7.1 ± 2.4 0.84
Gender (male/female) 73/71 37/35 36/36 1.00
Preoperative angle of exodeviation (PD) −35.9 ± 7.9 − 35.9 ± 7.3 − 35.8 ± 8.5 0.98
Binocular visual function measured by synoptophore
 simultaneous vision (n, %) 4 (2.8%) 2 (2.8%) 2 (2.8%) 1.00
 Fusion (n, %) 91 (63.2%) 45 (62.5%) 46 (63.9%) 1.00
 Distance stereopsis (n, %) 50 (34.7%) 26 (36.1%) 24 (33.3%) 0.86
 Good near stereopsis (n, %) 57 (39.6%) 34 (47.2%) 23 (31.9%) 0.09
 Log arcsec of near stereopsis 2.1 ± 0.4 2.0 ± 0.4 2.1 ± 0.5 0.14