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Table 1 Surgical procedures for superior oblique muscle palsy in the single-surgery group and the repetitive-surgery group at initial surgery

From: Clinical factors underlying a single surgery or repetitive surgeries to treat superior oblique muscle palsy

 

Diagnosis

Fixation eye

 

IO recession in paretic eye

SR recession in paretic eye

IR recession in contralateral eye

SO advancement in paretic eye

SO advancement in both eyes

Single surgery

Idiopathic

Contralateral eye

n = 103

83 (80.6%)

11 (10.7%)

8 (7.8%)

0 (0%)

1 (0.9%)

    

6 with LR rec.

1 with LR rec.

1 with LR rec.

  
    

1 with IR rec.

    
  

Paretic eye

n = 72

31 (43.1%)

5 (6.9%)

35 (48.6%)

1 (1.4%)

0 (0%)

    

2 with IR rec.

 

5 with LR rec.

  
      

1 with MR rec.

  
 

Acquired

Contralateral eye

n = 17

7 (41.2%)

2 (11.8%)

3 (17.6%)

2 (11.8%)

3 (17.6%)

    

1 with LR rec.

 

1 with MR rec.

  
  

Paretic eye

n = 11

3 (27.3%)

1 (9.1%)

3 (27.3%)

2 (18.2%)

2 (18.2%)

Repetitive surgeries

Idiopathic

Contralateral eye

n = 20

17 (84.2%)

0 (0%)

3 (15.8%)

0 (0%)

0 (0%)

    

2 with LR rec.

 

1 with SR rec.

  
    

2 with IR rec.

    
    

1 with SR rec.

    
  

Paretic eye

n = 17

10 (58.8%)

0 (0%)

7 (41.2%)

0 (0%)

0 (0%)

      

1 with LR rec.

  
 

Acquired

Contralateral eye

n = 4

2 (50.0%)

1 (25.0%)

1 (25.0%)

0 (0%)

0 (0%)

  

Paretic eye

n = 2

1 (50.0%)

1 (50.0%)

0 (0%)

0 (0%)

0 (0%)

  1. In 10 patients with bilateral palsy, including 2 with idiopathic palsy and 8 with acquired palsy, the paretic eye is assigned to the eye with the more marked palsy.
  2. IO, inferior oblique muscle; SR, superior rectus muscle; IR, inferior rectus muscle; SO, superior oblique muscle; LR, lateral rectus muscle; MR, medial rectus muscle; rec., recession.