Air-Liquid Exchange by Free Hand and One Needle for Unhealed Macular Hole

Figure 2

The size of macular holes in three patients before and after surgery. A–C: the size of the macular hole before vitrectomy, before gas-liquid exchange in patient 5, and the macular hole closed 7 days after gas-liquid exchange; D–F: the size of the macular hole before vitrectomy, before gas-liquid exchange in patient 6, and the macular hole closed 7 days after gas-liquid exchange.