01.12.2018 | Research article | Ausgabe 1/2018 Open Access

Comparative study of inverted internal limiting membrane (ILM) flap and ILM peeling technique in large macular holes: a randomized-control trial
- Zeitschrift:
- BMC Ophthalmology > Ausgabe 1/2018
Electronic supplementary material
Background
Methods
Surgical technique
Post-operative evaluation
Statistical analysis
Sample size calculation
Results
Group A ILM Peeling | Group B ILM inverted flap | p value | |
---|---|---|---|
Number | 30 | 30 | – |
Male: Female | 17:13 | 11:19 | 0.121a |
Mean Age | 61.17 ± 7.42 years (46.00–71.00 years) | 59.37 ± 6.71 years (41.00–70.00 years) | 0.328d |
Mean Minimum Diameter | 759.97 ± 85.01 μm (638.00–947.00 μm) 95% CI (728.22–791.71 μm) | 803.33 ± 120.65 μm (603.00–1007.00 μm) 95% CI (758.28–848.38 μm) | 0.113d |
Mean Base Diameter | 1304.50 ± 191.59 μm (873.00–1712.00 μm) 95% CI (1232.96–1376.04 μm) | 1395.17 μm ± 240.56 (1005.00–1968.00 μm) 95%CI (1305.34–1484.99 μm) | 0.112d |
Mean Baseline visual acuity | logMAR 0.79 ± 0.24 (Snellen equivalent, 20/123) 95% CI (logMAR 0.70-logMAR 0.89) | logMAR 0.75 ± 0.22 (Snellen equivalent, 20/112) 95%CI (logMAR 0.66-logMAR 0.83) | 0.471c |
Group A ILM Peeling | Group B ILM inverted flap | p value | |
---|---|---|---|
Anatomical closure | 76.7% (n = 23/30) | 90.0% (n = 27/30) | 0.166a |
Anatomical success i.e. Type 1 closure | 70.0% (n = 21/30) | 90.0% (n = 27/30) | 0.125b |
Type 2 closure | 6.7% (n = 2/30) | 0 | |
No closure | 23.3% (n = 7/30) | 10.0% (n = 3/30) | |
1-line improvement | 46.7% (n = 14/30) | 53.3% (n = 16/30) | 0.606a |
2-line improvement | 43.3% (n = 13/30) | 40.0% (n = 12/30) | 0.793a |
Mean BCVA at 1 month | logMAR 0.68 ± 0.25 (Snellen equivalent, 20/96). | logMAR 0.54 ± 0.19 (Snellen equivalent, 20/69) |
0.016
c
|
Mean BCVA at 6 months | logMAR 0.65 ± 0.25 (Snellen equivalent, 20/89) | logMAR 0.53 ± 0.20 (Snellen equivalent, 20/68) |
0.060
c
|
Mean improvement in BCVA | 1.4 lines | 2.1 lines | 0.353d |
BCVA≥20/60 | 26.7% (n = 8/30) | 23.3% (n = 7/30) | 0.766a |