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Table 2 Comparison of amblyopia and astigmatic type between normal eyes and ptotic eyes before ptosis repair surgery

From: Refractive error characteristics in patients with congenital blepharoptosis before and after ptosis repair surgery

  Fellow eye Ptotic eye P value
Numbers of eyes 41 67  
Amblyopia 2 (4.9 %) 14 (20.9 %) 0.02*
Astigmatism, Mean ± SD (range) −0.96 ± 1.07 (−4.5 ~ 0) −1.46 ± 1.30 (−5.25 ~ −0.5) 0.02**
Spherical equivalent refraction (SER) −1.05 ± 1.89 −1.54 ± 4.09 0.24*
Astigmatic type    0.81*
 OA 17 (41.5 %) 32 (47.8 %)  
 ATR 3 (7.3 %) 4 (6.0 %)  
 WTR 21 (51.2 %) 31 (46.3 %)  
  1. *Chi-Square test, P < 0.05 means statistically significant
  2. ** Independent t-test, P < 0.05 means statistically significant