Abstract Purpose To investigate changes in objective disk halo size produced by a glare source after small incision lenticule extraction (SMILE) for myopia correction. Methods This prospective clinical study included 45 right eyes of 45 patients with a mean age of 25.40 ± 5.06 years and mean spherical equivalent (SE) of − 6.08 ± 1.90 diopters. Disk halo size was measured with a vision monitor before surgery and at postoperative 1 week and 3 months. Other information was collected, including age, SE, lenticule thickness, lenticule diameter, dark pupil, and pupillary response to light parameters (initial diameter; amplitude, latency, duration, and velocity of contraction; latency, duration, and velocity of dilation; and maximum, minimum, and average pupil size). Results Compared to preoperative values, disk halo size increased significantly at postoperative 1 week (P = 0.026) and returned to baseline at postoperative 3 months (P = 0.349). Preoperative disk halo size significantly correlated with SE (r = − 0.346, P = 0.020), minimum pupil size (r = 0.365, P = 0.014), and average pupil size (r = 0.310, P = 0.038). Disk halo size at postoperative 1 week was significantly correlated with age (r = 0.324, P = 0.030) and minimum pupil size (r = 0.297, P = 0.047). Disk halo size at postoperative 3 months was significantly correlated with lenticule diameter (r = − 0.362, P = 0.015), initial diameter (r = 0.311, P = 0.037), maximum pupil size (r = 0.312, P = 0.037), minimum pupil size (r = 0.440, P = 0.002), and average pupil size (r = 0.373, P = 0.012). Conclusions After SMILE, disk halo size demonstrated a temporary increase and then returned to baseline.

中文翻译：

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小切口微透镜提取后圆盘光晕大小的评估（SMILE）

摘要 目的旨在研究用于近视矫正的小切口微透镜提取 (SMILE) 后眩光源产生的物镜圆盘光晕大小的变化。 方法这项前瞻性临床研究包括 45 名患者的 45 只右眼，平均年龄为 25.40 ± 5.06 岁，平均球镜当量 (SE) 为 − 6.08 ± 1.90 屈光度。在手术前、术后 1 周和 3 个月时用视力监测仪测量椎间盘光晕大小。收集其他信息，包括年龄、SE、微透镜厚度、微透镜直径、暗瞳孔和瞳孔对光参数的反应（初始直径；收缩幅度、潜伏期、持续时间和速度；扩张潜伏期、持续时间和速度；以及最大、最小和平均瞳孔大小）。 结果与术前相比，术后 1 周椎间盘光晕大小显着增加（磷= 0.026）并在术后 3 个月恢复到基线（磷= 0.349）。术前椎间盘晕大小与 SE 显着相关（r= - 0.346，磷= 0.020), 最小瞳孔尺寸 (r= 0.365,磷= 0.014），以及平均瞳孔大小（r= 0.310,磷= 0.038）。术后1周椎间盘晕大小与年龄显着相关（r= 0.324,磷= 0.030) 和最小瞳孔尺寸 (r= 0.297,磷= 0.047）。术后 3 个月的椎间盘光晕大小与微透镜直径显着相关（r= - 0.362，磷= 0.015), 初始直径 (r= 0.311,磷= 0.037), 最大瞳孔尺寸 (r= 0.312,磷= 0.037), 最小瞳孔尺寸 (r= 0.440,磷= 0.002），以及平均瞳孔大小（r= 0.373,磷= 0.012）。 结论SMILE 之后，磁盘光环大小出现暂时增加，然后恢复到基线。