Table 2 Pre- and post-operative clinical and SEMG data among cases of the present study

Clinical data

MRD1 (mm)

2.0 ± 0.3

1.3–2.5

3.3 ± 0.8

1.3–4.0

12.32

< 0.001**

Palpebral fissure height (mm)

5.7 ± 0.9

4.0–6.9

8.9 ± 2.0

4.0–11.0

13.10

< 0.001**

Levator function degree mm

7.3 ± 1.6

4.0–10.0

10.6 ± 1.6

8.0–13.0

12.69

< 0.001**

LF evaluation

Good

Fair

Poor

10 (25%)

23 (57.5%)

7(17.5%)

21 (52.5%)

15 (37.5%)

4(10.0%)

Marginal homogeneity test

< 0.001**

S.EMG

Amplitude (uV)

244.27 ± 56.4

150–339

396.2 ± 110.4

156–500

11.83

< 0.001**

Firing frequency (Hz)

29.8 ± 2.6

27–35

26.9 ± 2.9

25–33

10.46

< 0.001**