Individuals with attention deficit hyperactivity disorder (ADHD) frequently exhibit different types of visual deficits. This study investigates the dynamics of ocular accommodation and pupil size in a population of children with ADHD (6–14 years old) and assesses the association between these ocular variables with behavioural performance during a continuous performance task. The accommodation and pupil dynamics (magnitude and variability) were objectively measured, using the WAM-5500 auto-refractor, during the execution of a ~14-min continuous performance task in a sample of twenty-three non-medicated children with ADHD and thirty-one controls of a similar age range. Our data revealed that children with ADHD present a reduced accommodative response (higher lags of accommodation) during the execution of a continuous performance task. However, no group-differences were observed for the other ocular indices. Both groups experienced changes in all ocular variables as a function of time-on-task. The variability of accommodation and pupil diameter were associated with several indicators of behavioural performance for the ADHD group. However, no bivariate correlations were found for the control group. The current outcomes suggest that the accommodation and pupil dynamics may be considered as potential predictors of behavioural performance, which could help to improve the robustness of ADHD diagnosis.

患有注意力缺陷多动障碍 (ADHD) 的个体经常表现出不同类型的视觉缺陷。本研究调查了 ADHD 儿童（6-14 岁）的眼球调节和瞳孔大小的动态变化，并评估了这些眼球变量与连续表演任务中的行为表现之间的关联。使用 WAM-5500 自动验光仪，在 23 名非药物治疗多动症儿童和 30 名儿童样本中执行约 14 分钟的连续表演任务期间，客观测量了调节和瞳孔动态（幅度和可变性）。 - 一个类似年龄范围的控件。我们的数据显示，在执行连续表现任务期间，患有 ADHD 的儿童表现出降低的调节反应（更高的调节滞后）。然而，没有观察到其他眼部指数的组差异。两组都经历了所有视觉变量的变化，这是任务时间的函数。调节和瞳孔直径的可变性与 ADHD 组的几个行为表现指标相关。然而，没有发现对照组的双变量相关性。目前的结果表明，调节和瞳孔动态可被视为行为表现的潜在预测因子，这有助于提高 ADHD 诊断的稳健性。对照组没有发现双变量相关性。目前的结果表明，调节和瞳孔动态可被视为行为表现的潜在预测因子，这有助于提高 ADHD 诊断的稳健性。对照组没有发现双变量相关性。目前的结果表明，调节和瞳孔动态可被视为行为表现的潜在预测因子，这有助于提高 ADHD 诊断的稳健性。