Effect of Eye Mask Use on Sleep Quality and Delirium After CABG Surgery (EYE-CABG)

August 11, 2026 updated by: Nilgün SÖYLEMEZ, Munzur University

The Effect of Eye Mask Use on Sleep Quality and Delirium Levels in Patients Following Coronary Artery Bypass Graft 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.

Study Overview

Status

Not yet recruiting

Conditions

Intervention / Treatment

Detailed Description

Patients undergoing coronary artery bypass graft surgery may experience substantial disruption of their normal sleep-wake cycle during the postoperative period. Physical symptoms such as pain, dyspnea, and nocturia; psychological factors such as anxiety and depression; and environmental factors such as noise and continuous light exposure may contribute to poor sleep. Disrupted sleep may delay recovery, reduce quality of life, and increase susceptibility to postoperative delirium.

Non-pharmacological interventions are increasingly used to promote sleep while avoiding medication-related adverse effects. Reducing ambient light during nighttime sleep may support circadian regulation and facilitate sleep initiation and maintenance. Eye masks provide a simple, safe, inexpensive, and readily applicable method of limiting light exposure in clinical settings.

This study will evaluate whether postoperative eye mask use improves sleep quality and reduces delirium levels in patients undergoing coronary artery bypass graft surgery. The findings may provide evidence for incorporating eye mask use into routine postoperative nursing care following cardiac surgery.

Study Type

Interventional

Enrollment (Estimated)

100

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Locations

  • Turkey (Türkiye)
    • Erzurum
      • Erzurum, Erzurum, Turkey (Türkiye), 25040
        • Ataturk University Research Hospital
        • Contact:
        • Principal Investigator:
          • Beyzanur KIZILOĞLU AĞGÜN, PhD

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

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

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Supportive Care
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Eye Mask Group
Participants in this group will wear an eye mask during nighttime sleep following coronary artery bypass graft surgery in addition to routine postoperative care.
Other: Eye Mask
A light-blocking eye mask will be used during nighttime sleep to reduce exposure to ambient light and support sleep.
No Intervention: Control Group
Participants in this group will receive routine postoperative care without the use of an eye mask.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Postoperative Sleep Quality Assessed Using the Richards-Campbell Sleep Questionnaire
Time Frame: Postoperative day 5, postoperative day 7, and the day of hospital discharge(postoperative day 8-10)
Postoperative sleep quality will be assessed using the Richards-Campbell Sleep Questionnaire. The total score ranges from 0 to 100, with higher scores indicating better sleep quality.
Postoperative day 5, postoperative day 7, and the day of hospital discharge(postoperative day 8-10)
Postoperative Delirium Assessed Using the Nursing Delirium Screening Scale
Time Frame: Postoperative day 5, postoperative day 7, and the day of hospital discharge (postoperative day 8-10)
Postoperative delirium will be assessed using the Nursing Delirium Screening Scale (Nu-DESC). The scale consists of five items, each scored from 0 to 2, yielding a total score ranging from 0 to 10. Higher scores indicate greater delirium severity, and a total score of 2 or higher indicates the presence of delirium.Postoperative day 5, postoperative day 7, and the day of hospital discharge (postoperative day 8-10)
Postoperative day 5, postoperative day 7, and the day of hospital discharge (postoperative day 8-10)

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Munzur University

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Estimated)

September 15, 2026

Primary Completion (Estimated)

November 15, 2026

Study Completion (Estimated)

December 30, 2026

Study Registration Dates

First Submitted

August 6, 2026

First Submitted That Met QC Criteria

August 11, 2026

First Posted (Actual)

August 17, 2026

Study Record Updates

Last Update Posted (Actual)

August 17, 2026

Last Update Submitted That Met QC Criteria

August 11, 2026

Last Verified

August 1, 2026

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • EYEMASK

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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