Effect of Eye Mask Use on Sleep Quality and Delirium After CABG Surgery

Coronary artery bypass graft (CABG) surgery is an effective treatment for coronary artery disease; however, sleep disturbances and delirium are common during the postoperative period and may adversely affect recovery. Environmental factors, particularly light exposure, can disrupt the sleep-wake cycle and contribute to poor sleep quality. Eye masks offer a simple, safe, and non-pharmacological method of reducing light exposure and supporting sleep. This study aims to determine the effect of eye mask use on sleep quality and delirium levels in patients following CABG surgery.

Inclusion Criteria: * Aged 18 years or older * Scheduled to undergo elective coronary artery bypass graft surgery * Conscious, cooperative, and oriented * No diagnosed cognitive impairment that would prevent informed consent or completion of the study assessments * Able to communicate in Turkish * Baseline Nursing Delirium Screening Scale (Nu-DESC) score below 2 * Able and willing to use an eye mask * Voluntarily agreed to participate and provided written informed consen Exclusion Criteria: * Diagnosed sleep disorder * Regular use of sleep medication * Habitual use of an eye mask during sleep * Severe visual impairment or an ocular, facial, or skin condition preventing the safe use of an eye mask * Severe communication impairment preventing completion of the data collection instruments * Undergoing emergency coronary artery bypass graft surgery