Retinal thickness in eyes with idiopathic macular hole after vitrectomy with internal limiting membrane peeling

Purpose To compare the thickness of each retinal layer in the parafoveal and perifoveal regions of eyes after successful closure of a macular hole (MH) by pars plana vitrectomy with internal limiting membrane (ILM) peeling to the corresponding areas of the normal fellow eyes. Methods Twenty-two eyes of 22 patients with an idiopathic MH who underwent PPV with ILM peeling at the Matsumoto Dental University Hospital were studied. The retinal thickness was measured manually with the volume scan mode of the Spectralis HRA + OCT (Heidelberg Engineering, Germany). Results The average postoperative parafoveal thickness of the temporal sector was 314.8 μm, and that of the corresponding area of the fellow eyes was 325.0 μm ( P = 0.01). The parafoveal thickness of the nasal sector was 360.7 μm, and that of the fellow eyes was 339.6 μm ( P