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Table 2 Overview of preoperative and postoperative visual outcomes

From: Modified endoscopic transnasal orbital apex decompression in dysthyroid optic neuropathy

Eyes (N = 74) Preop Postop P valuea
Best corrected visual acuity (logMAR)
 Mean ± SD 0.70 ± 0.62 0.22 ± 0.33 < 0.001***
Visual field
 VFI (%) 65.86 ± 32.48 83.98 ± 21.14 < 0.001***
 MD (dB) −13.73 ± 9.22 −7.23 ± 7.04 < 0.001***
 PSD (dB) 6.26 ± 3.44 5.15 ± 2.92 < 0.001***
 Missing data (%) 15 (20) 22 (30)  
Proptosis measurement (mm)
 Mean ± SD 19.57 ± 3.38 16.35 ± 3.01 < 0.001***
 Missing data (%) 13 (19)  
RNFL of ONH (N = 39) (μm)
 Temporal 82.31 ± 42.41 71.89 ± 12.15 0.001***
 Superior 141.96 ± 49.41 129.89 ± 25.80 0.006**
 Nasal 88.76 ± 34.55 86.74 ± 32.47 0.312
 Inferior 139.35 ± 52.83 125.87 ± 29.99 0.047*
 Missing data (%) 36 (48)  
Medial rectus muscle diameter (mm)
 Mean ± SD 8.53 ± 2.42 9.51 ± 2.22 0.096
 Missing data (%) 8 (11) 34 (46)  
Fundus
 Papilledema (%) 17 (22) 5 (7)  
 Papillary pallor (%) 6 (8) 1 (1)  
 Large Cup/Disk ratio (%) 7 (9) 1 (1)  
 Normal (%) 59 (79) 67 (91)  
  1. Values with statistical significance are shown in bold
  2. VFI= visual field index (Humphrey), MD= mean deviation, PSD= pattern standard deviation, RNFL= retinal nerve fibre layer, ONH= optic nerve head
  3. *P < 0.05, **P < 0.01, ***P < 0.001
  4. aPaired Wilcoxon test