Little is known about the myopic characteristics of lamina cribrosa (LC) curvature. As such, we investigated nasal and temporal LC curvatures in myopia. In this retrospective, cross-sectional study, 144 myopic eyes (refraction < − 2D) and 88 non-myopic eyes (refraction > − 0.5D) underwent swept-source optical coherence tomography scanning of the LC. The anterior border of LC curvature was delineated with 17 points and interpolated with the “cardinal spline” curve-fitting method. The average curvature indices of the temporal and nasal sides were presented as the temporal and nasal curvatures. Myopic eyes had a mean refraction of − 6.7 ± 2.8D, while for non-myopic eyes, the value was 0.3 ± 1.0D. Nasal LC curvature was visible in 54 myopia (37.5%) and 42 non-myopia (47.7%) cases (P = 0.126), and temporal LC curvature was visible in 142 myopia (98.6%) and 68 non-myopia (77.3%) cases (P = 0.001). The nasal LC curvature was significantly larger in myopia than in non-myopia (P < 0.001). Contrastingly, the temporal LC curvature was significantly smaller in myopia than in non-myopia (P < 0.001). Axial length was associated with larger nasal LC curvature, smaller temporal LC curvature, and larger nasal–temporal LC curvature difference (all P’s < 0.05). In myopic relative to non-myopic eyes, LC curvature was decreased temporally and increased nasally.

关于筛板 (LC) 曲率的近视特征知之甚少。因此，我们研究了近视患者的鼻腔和颞侧 LC 曲率。在这项回顾性横断面研究中，144 只近视眼（屈光度 < − 2 D）和 88 只非近视眼（屈光度 > − 0.5 D）接受了 LC 的扫描源光学相干断层扫描。LC曲率的前缘由17个点划定，并用“基数样条”曲线拟合方法插值。颞侧和鼻侧的平均曲率指数表示为颞侧和鼻侧曲率。近视眼的平均屈光度为 − 6.7 ± 2.8 D，而非近视眼的平均屈光度为 0.3 ± 1.0 D. 近视 54 例 (37.5%) 和非近视 42 例 (47.7%) 可见鼻 LC 弯曲 ( P  = 0.126)，近视 142 例 (98.6%) 和非近视 68 例 (77.3%) 可见颞 LC 弯曲例（P  = 0.001）。近视眼的鼻腔 LC 曲率明显大于非近视眼 ( P  < 0.001)。相比之下，近视眼的时间 LC 曲率明显小于非近视眼 ( P  < 0.001)。轴向长度与较大的鼻 LC 曲率、较小的颞 LC 曲率和较大的鼻-颞 LC 曲率差异相关（所有P < 0.05）。相对于非近视眼，近视眼的 LC 曲率在时间上减小，在鼻腔上增加。