Refractive Changes Induced by Strabismus Corrective Surgery in Adults
Table 3
SIRC according to preoperative astigmatism or number of muscles involved.
Parameter (Diopter power), mean ± SD
Sphere
Axis
SE
value
value
Preoperative astigmatism
Present ()
−0.57 ± 0.52
0.35 ± 0.53
97
−0.29 ± 0.33
0.015
0.002
Absent ()
−0.41 ± 0.43
0.14 ± 0.17
85
−0.30 ± 0.39
0.009
0.009
Muscles involved
Single muscle ()
−0.39 ± 0.43
0.11 ± 0.29
67
−0.26 ± 0.37
0.164
0.010
Two muscles ()
−0.60 ± 0.52
0.43 ± 0.48
100
−0.34 ± 0.34
0.003
0.003
Total ()
−0.50 ± 0.48
0.25 ± 0.42
94
−0.30 ± 0.35
0.002
<0.001
Bold indicates value is statistically significant. Calculated using double-angle mathematical methods for subtraction of refraction. Surgically induced cylinder different from zero. Surgically induced SE different from zero.
