Table 1 Overall data and comparison between group 1 (8-mm MMCR with 1-mm tarsectomy) and group 2 (8-mm MMCR with 2-mm tarsectomy)
All subjects (N = 60) mean ± SD (range) | Group 1 (N = 32) mean ± SD (range) | Group 2 (N = 28) mean ± SD (range) | P value | |
|---|---|---|---|---|
Age (years) | 54.2 ± 16.5 (23–80) | 49.0 ± 16.0 (23–77) | 60.0 ± 15.3 (28–80) | 0.009 |
Female (%) | 75 | 78.1 | 71.4 | 0.55 |
Preop MRD1 of ptotic eye (mm) | 1.23 ± 0.9 (0.53–3.60) | 1.58 ± 0.9 (− 0.33–3.60) | 0.83 ± 0.8 (− 0.53–2.44) | 0.002 |
Preop MRD1 of healthy eye (mm) | 3.21 ± 1.0 (1.30–5.68) | 3.10 ± 0.9 (1.56–5.68) | 3.34 ± 1.1 (1.30–5.56) | 0.327 |
Postop MRD1 of ptotic eye (mm) | 3.38 ± 0.9 (1.71–5.94) | 3.24 ± 0.9 (1.81–5.94) | 3.54 ± 0.9 (1.71–5.87) | 0.194 |
Postop MRD1 of healthy eye (mm) | 3.07 ± 1.0 (1.11–5.94) | 3.06 ± 1.1 (1.11–5.94) | 3.09 ± 0.9 (1.52–4.95) | 0.909 |
Preop TPS of ptotic eye (mm) | 5.36 ± 1.4 (2.25–10.15) | 4.88 ± 1.3 (2.25–8.36) | 5.91 ± 1.4 (3.48–10.15) | 0.007 |
Preop TPS of healthy eye (mm) | 3.20 ± 1.3 (0.56–6.80) | 3.12 ± 1.5 (0.56–6.80) | 3.29 ± 1.2 (1.05–6.65) | 0.639 |
Postop TPS of ptotic eye (mm) | 3.06 ± 1.2 (0.69–7.10) | 3.04 ± 0.9 (1.53–5.94) | 3.09 ± 1.5 (0.69–7.10) | 0.867 |
Postop TPS of healthy eye (mm) | 3.33 ± 1.3 (0.45–6.88) | 3.27 ± 1.4 (0.45–6.79) | 3.40 ± 1.3 (1.28–6.88) | 0.711 |
Change in MRD1 (mm) | 2.15 ± 0.8 (0.46–3.82) | 1.66 ± 0.6 (0.46–3.82) | 2.72 ± 0.6 (1.54–3.79) | < 0.001 |
Postop MRD1 difference within 1 mm between two eyes (%) | 88.3 | 90.6 | 85.7 | 0.554 |