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Table 4 Changes of BCVA and IOP in the Two Groups

From: Comparison of 27-gauge beveled-tip and 25-gauge flat-tip microincision vitrectomy surgery in the treatment of proliferative diabetic retinopathy: a randomized controlled trial

 

27G beveled-tip

(n = 25)

25G flat-tip

(n = 22)

p value

(Preop vs. Postop)

BCVA (logMAR)

   

Preop

1.53 ± 0.49

1.68 ± 0.66

 

Postop (1d)

1.56 ± 0.42

1.54 ± 0.53

0.732

Postop (1w)

1.16 ± 0.62

1.32 ± 0.65

0.001

Postop (1 m)

0.82 ± 0.53

1.10 ± 0.47

< 0.001

Postop (3 m)

Postop (6 m)

0.90 ± 0.60

0.80 ± 0.64

1.03 ± 0.58

1.01 ± 0.58

< 0.001

< 0.001

P value (27G vs. 25G)

0.584

  

IOP (mmHg)

   

Preop

15.5 ± 3.2

16.4 ± 5.5

 

Postop (1d)

15.3 ± 5.3

17.3 ± 6.7

0.667

Postop (1w)

18.6 ± 6.1

19.6 ± 9.2

0.017

Postop (1 m)

17.9 ± 5.2

16.9 ± 5.2

0.078

Postop (3 m)

Postop (6 m)

15.7 ± 3.8

16.8 ± 2.8

17.3 ± 2.7

16.0 ± 3.1

0.549

0.359

P value (27G vs. 25G)

0.412

  
  1. Comparisons between the two groups were based on GEE.
  2. 27G, 27-gauge; 25G, 25-gauge; BCVA, preoperative best-corrected visual acuity; logMAR, logarithm of the minimal angle of resolution; IOP, preoperative intraocular pressure; Preop, preoperative; Postop, postoperative.
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BMC Ophthalmology

ISSN: 1471-2415

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