First Author: K.Ohta JAPAN
Co Author(s): N. Senda A. Sato E. Fukui A. Koshino 0 0 0 0 0 0 0 0 0
Back to previous
We have shown that the parafoveal retina is thicker at the nasal sector and thinner at the temporal sector in the optical coherence tomographic (OCT) images recorded 6 months after successful idiopathic macular hole (MH) closure by pars plana vitrectomy (PPV) with internal limiting membrane (ILM) peeling (Ohta K. Br J Ophthalmol 2010, Graefes Arch Clin Exp Ophthalmol 2013). The purpose of this study was to determine whether the foveal slopes of the four sectors around the closed MH are different.
A retrospective study at the Matsumoto Dental University Hospital.
Forty-three eyes of 43 patients (22 women and 21 men), mean age of 65.8 ± 5.2 years, with a MH who underwent PPV with ILM peeling at the Matsumoto Dental University Hospital were studied. The eyes were examined at 6 months after the surgery. The foveal slope was measured by the ImageJ software in both the horizontal and vertical images obtained by Spectralis HRA+OCT (Heidelberg Engineering, Germany). The foveal slope in the 4 sectors of the affected eyes was compared to the corresponding sectors of the fellow eyes.
The mean foveal slope of the nasal, superior, inferior, and temporal sectors was 31.4 ± 6.2, 31.2 ± 5.4, 31.6 ± 7.4, and 29.9 ± 6.6 degrees, respectively in the fellow eyes. All of these values were significantly larger in the operated eyes at 50.4 ± 9.1, 46.9 ± 11.3, 48.6 ± 11.3, and 41.3 ± 11.2 degrees, respectively; P< 0.00001). In addition, both the nasal and inferior slopes were significantly steeper than the temporal slopes (P=0.002 and P=0.023, respectively). There was no significant correlation between each slope and the visual acuity, macular hole size, area of ILM peeling, and postoperative parafoveal retinal thickness.
The postoperative foveal slope increased after MH surgery with ILM peeling. The foveal contour is changed asymmetrically after the surgery.