Fig. 2From: Sulfur hexafluoride (SF6) versus perfluoropropane (C3F8) tamponade and short term face-down position for macular hole repair: a randomized prospective studyTrend of mean best corrected visual acuity over time, depending on the size of the macular hole and the tamponade used. SF6 = sulfur hexafluoride; C3F8 = perfluoropropane; small (<250 µm), medium (>250–<400 µm) and large (>400 µm)Back to article page