Characteristic Idiopathic Macular Hole Rhegmatogenous Retinal Detachment  Eyes/patients (n/n) 11/11 10/10 Male/female (n/n) 4/7 7/3 Age (years), mean (SD) (range) 64.3 (8.0) (50 to 79) 57.9 (7.0) (48 to 70) Examination (months) from surgery 12.6 (12.9) (6 to 48) 19.6 (20.4) (4 to 70) Macular hole stage (n)     2 2 - 3 9 - Preoperative macula status (n)     on - 10 Preoperative PVD 0/11 10/11 Refractive error (Dioptor), mean (SD) -0.82 (1.17) (0 to -3.0) -3.98 (2.65) (0 to -8.75) * Preoperative mean VA, logMAR units 0.48 N/A (some data missing) Postoperative mean VA, logMAR units 0.00064 -0.11 ILM peeling with ICG staining (n) 11 0

ICG, indocyanine green; ILM, internal limiting membrane; PVD, posterior vitreous detachment *P value is 0.0002 by unpaired t-test between two groups There are not significant differences in age and visual acuities between both groups

Table 1: Descriptive data of eyes undergoing pars plana vitrectomy.