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Table 1 Distribution of cases depending on stage and gas tamponade

From: Sulfur hexafluoride (SF6) versus perfluoropropane (C3F8) tamponade and short term face-down position for macular hole repair: a randomized prospective study

Type of tamponade Size of the macular hole
Small Medium Large Total
SF6 22 27 21 70
C3F8 25 24 28 77
Total 47 51 49 147
  1. All the patients were divided into three groups depending on the narrowest width of the hole drawing a line with the caliper tool parallel to the retinal pigment epithelium: small (<250 µm), medium (>250–<400 µm) and large (>400 µm). SF6 = sulfur hexafluoride; C3F8 = perfluoropropane