Table 3 Comparison of the macular thickness of the BSS and air groups over 2 years.

From: Comparison of the effect of air tamponade versus no tamponade after pars plana vitrectomy for idiopathic epiretinal membrane

Parameter

Location

Central

Superior

Nasal

Inferior

Temporal

Preoperative

BSS

388.82 ± 69.65

331.08 ± 46.18

338.18 ± 35.76

307.61 ± 37.53

319.17 ± 42.34

Air

399.23 ± 80.12

332.49 ± 40.30

348.74 ± 34.84

318.82 ± 47.60

320.71 ± 41.90

p value

0.073

0.575

0.791

0.074

0.992

1 month

BSS

409.15 ± 67.80

332.62 ± 32.15

351.48 ± 27.17

312.69 ± 23.61

310.08 ± 33.41

Air

393.14 ± 56.31

329.53 ± 28.08

358.16 ± 27.63

320.17 ± 26.98

304.69 ± 33.96

p value

0.183

0.376

0.930

0.479

0.950

3 months

BSS

377.49 ± 46.10

315.04 ± 25.23

339.42 ± 25.32

302.21 ± 25.80

294.89 ± 25.55

Air

381.41 ± 47.62

321.02 ± 23.05

346.89 ± 21.42

310.52 ± 26.75

302.15 ± 24.14

p value

0.614

0.468

0.211

0.917

0.465

6 months

BSS

374.18 ± 46.41

309.93 ± 25.05

333.20 ± 22.76

295.06 ± 21.43

291.11 ± 24.40

Air

370.15 ± 48.81

311.26 ± 25.55

337.75 ± 22.19

300.91 ± 24.94

293.87 ± 28.16

p value

0.496

0.897

0.734

0.639

0.591

1 year

BSS

361.75 ± 38.12

300.13 ± 19.86

328.36 ± 24.41

289.69 ± 21.23

286.33 ± 23.97

Air

363.51 ± 46.50

306.20 ± 24.63

335.37 ± 18.34

296.32 ± 25.29

290.34 ± 29.13

p value

0.133

0.419

0.131

0.707

0.199

2 years

BSS

361.89 ± 43.49

303.42 ± 31.33

321.89 ± 22.25

286.22 ± 22.15

285.97 ± 25.52

Air

355.32 ± 51.38

302.50 ± 29.36

330.64 ± 20.86

299.64 ± 43.62

289.96 ± 33.40

p value

0.302

0.847

0.484

0.052

0.260

  1. Values are presented as n or mean ± standard deviation.
  2. BSS balanced salt solution; Air air tamponade.
  3. p values were derived by independent t-tests.