Eye Tracking for Early Identification of Post-ICU Cognitive Impairment

Some patients may have problems with memory, attention, thinking speed, or other cognitive functions after leaving the intensive care unit (ICU). This is called post-ICU cognitive impairment. Early recognition of this problem may help clinicians provide follow-up care and support more promptly. This study will explore whether eye-tracking technology can help identify cognitive impairment in patients soon after ICU discharge. Eye tracking is a non-invasive test that records eye movements while a person looks at images or completes simple visual tasks on a screen. The test does not involve any treatment or change in usual medical care. Participants will be adult patients who have been transferred from the ICU to a general ward. Within 7 days after ICU discharge, participants will complete a cognitive assessment and an eye-tracking test. The study team will also collect relevant clinical information from medical records. Patients will be grouped according to whether they have post-ICU cognitive impairment based on cognitive assessment and clinical judgment. The main purpose of this study is to assess whether information obtained from eye-tracking tests can help clinicians identify possible post-ICU cognitive impairment at an early stage, when used together with standard cognitive assessment. The study will also compare eye movement patterns between the two groups and explore whether eye-tracking measures add useful information beyond standard cognitive assessment.