Fig. 4From: Internal limiting membrane insertion technique combined with nerve growth factor injection for large macular holeA representative case in the NGF group. a Baseline fundus photographs reveal a large FTMH. The OCT reveals a large hole of minimum diameter 711.5 μm. The defects in the ELM (white arrowhead) and EZ (yellow arrowhead) measured 1489 μm and 1789 μm, respectively. b At 6th month after surgery, hole closure was evident on fundus photography. OCT revealed that the closure was more like a V-shaped, a small part of glial tissue (grey arrow) could been found. The ELM and EZ defects decreased to 537 and 762 μm, respectively. The BCVA improved from 38 to 57 lettersBack to article page