Table 4 Comparisons of pre- and post-operative visual acuity and central retinal thickness between 27- and 25-gauge vitrectomy

27-gauge vitrectomy (100 eyes)

74.7 ± 12.5 (15-89)

4.7 ± 8.1

6.8 ± 9.4

7.8 ± 9.7

381.5 ± 84.0 (253–656)

−24.2 ± 50.0

−38.9 ± 64.3

−56.9 ± 48.1

25-gauge vitrectomy (100 eyes)

73.6 ± 13.3 (30-89)

1.1 ± 13.6

4.6 ± 13.4

6.4 ± 12.7

373.5 ± 97.3 (187–698)

−8.0 ± 48.6

−37.9 ± 91.4

−55.7 ± 93.1

P value

0.7298^a

0.0421^a

0.0835^a

0.0569^a

0.3850^a

0.0354 ^a

0.6059 ^a

0.1725 ^a