Department of Ophthalmology, School of Medicine, Pusan National University, Yangsan, South Korea.
Biomedical Research Institute, Pusan National University Hospital, Busan, South Korea; and.
Retina. 2021 May 1;41(5):931-939. doi: 10.1097/IAE.0000000000002955.
To investigate the correlation between postoperative metamorphopsia and macular deformation after macular hole surgery.
This study included 28 eyes of 28 patients who underwent vitrectomy and internal limiting membrane removal for an idiopathic macular hole. The retinal vasculatures were compared between preoperative and postoperative photographs, and postoperative deformation of the macula was assessed as deformation of the square grid. The displacement of each node was measured, and deformation of the grid was calculated as differences in the coordinates of the adjacent nodes. These parameters were analyzed to find correlation with metamorphopsia measured using the M-charts after 6 postoperative months.
The average deformations in the vertical and horizontal lines of the grid were 94.29 μm and 49.72 μm, respectively. Perifoveal deformation was significantly greater than parafoveal deformation (P = 0.001∼0.019). The multiple regression analysis demonstrated that the vertical M-score correlated with superior perifoveal deformation of the vertical line on the fovea (P = 0.036), and the horizontal M-score correlated with temporal perifoveal deformation of the horizontal line on the fovea (P = 0.032).
The parafoveal tissue was displaced with the fovea concurrently after internal limiting membrane removal in macular hole surgery causing perifoveal deformation, which correlated with postoperative metamorphopsia.
研究黄斑裂孔手术后术后性形觉变形与黄斑变形之间的相关性。
本研究纳入了 28 例（28 只眼）接受玻璃体切割联合内界膜剥除术治疗的特发性黄斑裂孔患者。比较术前和术后照片中的视网膜血管，将黄斑变形评估为方格网格的变形。测量每个节点的位移，并计算网格变形作为相邻节点坐标的差异。分析这些参数与术后 6 个月使用 M 图表测量的性形觉变形之间的相关性。
网格垂直线和水平线的平均变形分别为 94.29 μm 和 49.72 μm。中心凹旁变形明显大于中心凹变形（P = 0.001∼0.019）。多元回归分析表明，垂直 M 评分与垂直线上的上方中心凹旁变形相关（P = 0.036），水平 M 评分与水平线上的颞侧中心凹旁变形相关（P = 0.032）。
在黄斑裂孔手术后，内界膜去除时，旁中心凹组织与中心凹同时移位，导致中心凹旁变形，与术后性形觉变形相关。
