Table 2 Functional outcomes of macular hole surgery per the longitudinal changes in retinal sensitivity in Areas 1, 2, 3, and 4 according to the surgical methods

MRS (dB), Area 1 (ICG staining−/ILM peeling−)

Baseline

24.47 ± 3.63

1 month

24.72 ± 2.52

3 months

24.63 ± 3.27

6 months

25.40 ± 4.09

p value^a (baseline vs. 1 month)

0.929

p value^a (baseline vs. 3 months)

0.918

p value^a (baseline vs. 6 months)

0.262

MRS (dB), Area 2 (ICG staining−/ILM peeling +)

Baseline

27.13 ± 1.67

1 month

27.18 ± 1.10

3 months

27.20 ± 1.49

6 months

28.04 ± 1.12

p-value^a (baseline vs. 1 month)

0.943

p-value^a (baseline vs. 3 months)

0.812

p-value^a (baseline vs. 6 months)

0.057

MRS (dB), Area 3 (ICG staining+/ILM peeling+)

Baseline

26.63 ± 1.80

1 month

26.06 ± 2.13

3 months

25.52 ± 2.08

6 months

25.52 ± 1.95

p-value^a (baseline vs. 1 month)

0.199

p-value^a (baseline vs. 3 months)

0.036*

p-value^a (baseline vs. 6 months)

0.059

MRS (dB), Area 4 (ICG staining+/ILM peeling−)

Baseline

21.77 ± 3.88

1 month

22.59 ± 2.11

3 months

21.02 ± 3.72

6 months

21.00 ± 4.32

p-value^a (baseline vs. 1 month)

0.332

p-value^a (baseline vs. 3 months)

0.683

p-value^a (baseline vs. 6 months)

0.812