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. 2022 Mar 24;22:134. doi: 10.1186/s12886-022-02367-1

Table 2.

The preoperative and postoperative results of the total fovea-disa angle, Up-down gaze deviation, Right side, Left side before and after surgery

Total fovea-disa angle
(°)
difference of deviation
between up and down gaze a
()
lateral incomitance at
right gaze b
()
lateral incomitance at
left gaze b
()
Preop Postop P Preop Postop P Preop Postop P Preop Postop P

Group A

(n = 22)

−11.4 ± 4.95 − 10.8 ± 4.48 0.519 − 1.23 ± 2.45 −0.82 ± 1.92 0.488 − 0.32 ± 1.99 − 0.68 ± 1.84 0.589 − 0.55 ± 1.60 − 0.73 ± 2.03 0.758

Group B

(n = 18)

−11.8 ± 4.97 − 13.2 ± 3.43 0.264 − 1.53 ± 3.52 − 1.13 ± 1.89 0.710 0.27 ± 2.76 − 0.73 ± 1.53 0.231 0.13 ± 1.73 −0.47 ± 1.96 0.384

Group C

(n = 18)

−10.5 ± 6.55 −12.6 ± 3.41 0.213 −1.55 ± 4.50 0.18 ± 3.52 0.430 −0.64 ± 3.53 −0.18 ± 0.75 0.676 −0.27 ± 3.41 − 0.73 ± 1.68 0.708
P 0.911 0.370 0.950 0.359 0.669 0.623 0.648 0.911

athe deviation at up gaze minus the deviation at down gaze

For example, 8 exotropia(−8) at up gaze and 6 (−6) exotropia at down gaze, a = (− 8) -(− 6) = −2

6 exotropia (− 6) at up gaze and 8 (− 8) exotropia at down gaze, a = (− 6) -(− 8) = 2

bthe deviation in the primary position minus the deviation at the right or the left gaze

For example, 8 exotropia(− 8) in the primary position and 6 (− 6) exotropia at the left gaze, b = (− 8) -(− 6) = − 2