Table 1.
Clinical characteristics of epiretinal membrane (ERM), macular pseudohole (MPH), ERM-foveoschisis (ERM-FS) and lamellar macular hole (LMH).
Fig 1.
Comparison of axial length (A) and spherical equivalent (B) in epiretinal membrane (ERM), macular pseudohole (MPH), ERM-foveoschisis (ERM-FS) and lamellar macular hole (LMH).
The mean axial length was longer in MPH, ERM-FS, and LMH compared to ERM. The spherical equivalent was significantly smaller in the MPH, ERM-FS, and LMH compared to the ERM. Significantly different in Tukey-Kramer test, *p < 0.05, **p < 0.01.
Fig 2.
Best-corrected visual acuity (BCVA) before and after surgery in epiretinal membrane (ERM), macular pseudohole (MPH), ERM-foveoschisis (ERM-FS) and lamellar macular hole (LMH). a: Significantly different in the Wilcoxon’s signed-rank test. b: Significantly different in the Tukey-Kramer test.
Preoperative BCVA did not significantly differ among the groups. Postoperative BCVA was significantly worse in LMH compared to ERM.
Table 2.
OCT findings of epiretinal membrane (ERM), macular pseudohole (MPH), ERM-foveoschisis (ERM-FS) and lamellar macular hole (LMH).
Fig 3.
Comparison of central foveal thickness (CFT) (A), central retinal thickness (CRT) (B), and macular volume (MV) (C) in epiretinal membrane (ERM), macular pseudohole (MPH), ERM-foveoschisis (ERM-FS) and lamellar macular hole (LMH) Both the CFT and CRT were significantly higher in the ERM compared to the other three groups.
Additionally, the ERM-FS showed significantly higher CFT and CRT compared to the LMH. The MV was significantly larger in ERM compared to the LMH. Significantly different from the other groups (*p < 0.05, **p < 0.01, ***p < 0.001, Tukey-Kramer test).
Table 3.
Relationships between preoperative OCT findings and visual acuity in epiretinal membrane (ERM), macular pseudohole (MPH), ERM-foveoschisis (ERM-FS) and lamellar macular hole (LMH).
Table 4.
Multiple regression analysis between postoperative best-corrected visual acuity (BCVA) and preoperative BCVA and OCT findings in epiretinal membrane (ERM), macular pseudohole (MPH), ERM-foveoschisis (ERM-FS) and lamellar macular hole (LMH).