Kouichi Ohta1, Atsuko Sato2, Nami Senda2, Emi Fukui2. 1. Department of Ophthalmology, Matsumoto Dental University, 1780 Gobara, Hirooka, Shiojiri, Nagano, 399-0781, Japan. ohta@po.mdu.ac.jp. 2. Department of Ophthalmology, Matsumoto Dental University, 1780 Gobara, Hirooka, Shiojiri, Nagano, 399-0781, Japan.
Abstract
PURPOSE: We have previously shown that the thickness of the parafoveal retina was asymmetrical in spectral-domain optical coherence tomographic (SD-OCT) images after idiopathic macular hole (MH) closure by pars plana vitrectomy (PPV) with internal limiting membrane (ILM) peeling. The aim of this study was to determine whether the foveal slopes around the closed MH were also asymmetrical. METHODS: Forty-three eyes with an MH treated with PPV with ILM peeling at Matsumoto Dental University Hospital were studied. The foveal slope was determined with ImageJ software in both the horizontal and vertical images obtained by SD-OCT at 6 months after the surgery. The possible related factors were also compared. RESULTS: The mean angles of the foveal slopes of the nasal, superior, inferior, and temporal sectors were 31.4° ± 6.2°, 31.2° ± 5.4°, 31.6° ± 7.4°, and 29.9° ± 6.6°, respectively, in the fellow eyes. The corresponding values in the operated eyes were significantly steeper at 50.4° ± 9.1°, 46.9° ± 11.3°, 48.6° ± 11.3°, and 41.3° ± 11.2°, respectively (P < 0.00001). Both the nasal and inferior slopes were significantly steeper than the temporal slopes of the same operated eye (P = 0.002 and P = 0.023, respectively). There was no significant correlation between each slope and the visual acuity, MH size, area of peeled ILM, postoperative parafoveal retinal thickness, defect of the retinal outer layers, disc-foveal distance, stage, and use of dye for ILM peeling. CONCLUSIONS: Although the postoperative foveal contour was markedly changed asymmetrically, the significance of the change was not determined.
PURPOSE: We have previously shown that the thickness of the parafoveal retina was asymmetrical in spectral-domain optical coherence tomographic (SD-OCT) images after idiopathic macular hole (MH) closure by pars plana vitrectomy (PPV) with internal limiting membrane (ILM) peeling. The aim of this study was to determine whether the foveal slopes around the closed MH were also asymmetrical. METHODS: Forty-three eyes with an MH treated with PPV with ILM peeling at Matsumoto Dental University Hospital were studied. The foveal slope was determined with ImageJ software in both the horizontal and vertical images obtained by SD-OCT at 6 months after the surgery. The possible related factors were also compared. RESULTS: The mean angles of the foveal slopes of the nasal, superior, inferior, and temporal sectors were 31.4° ± 6.2°, 31.2° ± 5.4°, 31.6° ± 7.4°, and 29.9° ± 6.6°, respectively, in the fellow eyes. The corresponding values in the operated eyes were significantly steeper at 50.4° ± 9.1°, 46.9° ± 11.3°, 48.6° ± 11.3°, and 41.3° ± 11.2°, respectively (P < 0.00001). Both the nasal and inferior slopes were significantly steeper than the temporal slopes of the same operated eye (P = 0.002 and P = 0.023, respectively). There was no significant correlation between each slope and the visual acuity, MH size, area of peeled ILM, postoperative parafoveal retinal thickness, defect of the retinal outer layers, disc-foveal distance, stage, and use of dye for ILM peeling. CONCLUSIONS: Although the postoperative foveal contour was markedly changed asymmetrically, the significance of the change was not determined.
Authors: Noemi Lois; Jennifer Burr; John Norrie; Luke Vale; Jonathan Cook; Alison McDonald; Charles Boachie; Laura Ternent; Gladys McPherson Journal: Invest Ophthalmol Vis Sci Date: 2011-03-01 Impact factor: 4.799