Fig. 1

Schematic diagrams of fovea-sparing internal limiting membrane (ILM) peeling with and without inverted flap. A In the cases without inverted ILM flap, several sits of ILM tissue at the edge of the reserved area (bold dotted line) were ripped carefully at about one disc diameter away from the fovea, by the retrobulbar injection needle with a hook. B To precede along with the boundary of the reserved area. When the peeled ILM flap deviated from the boundary, to start ILM peeling from a new ripped site was available. C To get the ILM of posterior pole peeled off in the center preserved manner (dotted line circle). D In the cases with the inverted flap, an additional area about one disc diameter above the fovea was prepared when ripping the reserved boundary (bold dotted line). E After removing the ILM around the reservation area, the above additional ILM was peeled and inverted towards to the foveal zone. F The ILM forceps covered the prepared ILM flap onto the fovea area