Guantay Carla D, Mena-García Laura, Tola-Arribas Miguel Ángel, Garea García-Malvar María José, Para-Prieto Marta, González Fernández Gloria, Mayo-Iscar Agustín, Pastor J Carlos
Instituto Universitario de Oftalmobiología Aplicada (IOBA Eye Institute), Universidad de Valladolid, Valladolid, Spain.
Red de Investigación Cooperativa Orientada a Resultados en Salud (RICORS), Red de Enfermedades Inflamatorias (REI), Instituto de Salud Carlos III, Madrid, Spain.
J Eye Mov Res. 2024 Jul 4;17(2). doi: 10.16910/jemr.17.2.2. eCollection 2024.
State-of-the-art eye trackers provide valuable information for diagnosing reading problems by measuring and interpreting people's gaze paths as they read through text. Abnormal conditions such as visual field defects, however, can seriously confound most of today's existing methods for interpreting reading gaze patterns. Our objective was to research how visual field defects impact reading gaze path patterns, so the effects of such neurological pathologies can be explicitly incorporated into more comprehensive reading diagnosis methodologies. A cross-sectional, non-randomized, pilot clinical study including 45 patients with various neurologic disorders and 30 normal controls was designed. Participants underwent ophthalmologic/neuropsychologic and eye-tracker examinations using two reading tests of words and numbers. The results showed that the use of the eye tracker showed that patients with brain damage and an altered visual field require more time to complete a reading-text test by fixating a greater number of times (p < 0.001); with longer fixations (p = 0.03); and a greater number of saccades in these patients (p = 0.04). Our study showed objective differences in eye movement characteristics in patients with neurological diseases and an altered visual field who complained of reading difficulties. These findings should be considered as a bias factor and deserve further investigation.
最先进的眼动仪通过测量和解读人们阅读文本时的注视路径，为诊断阅读问题提供了有价值的信息。然而，诸如视野缺损等异常情况会严重混淆当今大多数现有的解读阅读注视模式的方法。我们的目标是研究视野缺损如何影响阅读注视路径模式，以便将此类神经病理学的影响明确纳入更全面的阅读诊断方法中。设计了一项横断面、非随机的试点临床研究，纳入了45名患有各种神经系统疾病的患者和30名正常对照。参与者使用单词和数字的两项阅读测试接受了眼科/神经心理学和眼动仪检查。结果表明，使用眼动仪显示，脑损伤和视野改变的患者需要更多时间来完成阅读文本测试，注视次数更多（p < 0.001）；注视时间更长（p = 0.03）；这些患者的扫视次数更多（p = 0.04）。我们的研究显示，抱怨阅读困难的神经系统疾病和视野改变患者的眼动特征存在客观差异。这些发现应被视为一个偏差因素，值得进一步研究。
