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. 2021 Feb 3;15(2):179–185. doi: 10.1016/j.optom.2020.09.005

Table 2.

Pre- postoperative pupil diameter change for photopic and mesopic pupils of the total sample (n = 109) and segmented by groups: female group (n = 71) and male group (n = 38).

Total Female group Male group Pa
Photopic pupil diameter (mm) Preoperative 2.52 ± 0.43 2.55 ± 0.44 2.47 ± 0.42
Postoperative 2.46 ± 0.41 2.51 ± 0.42 2.36 ± 0.37
Difference −0.07 ± 0.17 −0.04 ± 0.16 −0.11 ± 0.18 0.048*(0.40)
(%) −2.4% −1.6% −4.5%
Pb <0.001 (0.4)* 0.027*(0.3) 0.001*(0.6)



Mesopic pupil diameter (mm) Preoperative 4.58 ± 0.90 4.62 ± 0.93 4.50 ± 0.85
Postoperative 4.14 ± 0.80 4.24 ± 0.82 3.94 ± 0.73
Difference −0.44 ± 0.40 −0.38 ± 0.37 −0.56 ± 0.44 0.025*(0.46)
(%) −9.6% −8.2% −12.4%
Pb <0.001*(1.1) <0.001*(1.0) <0.001*(1.3)
*

Statistical significance.

a

t-Student (Cohen's d for independent samples).

b

Paired t-Student (Cohen's d for paired samples).