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Not yet recruitingNCT07768020EYE-CABGUpdated Aug 17, 2026

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

An interventional study of Eye Mask in Coronary Artery Disease, Sleep Quality and Postoperative Delirium (POD), sponsored by Munzur University. Not yet recruiting at 1 site in Turkey (Türkiye). Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-08-17.

Sponsored by Munzur University · Not applicable, Interventional, and Supportive care

Phase
Not applicable
Study type
Interventional
Enrollment
100
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

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.

Read the 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.

02

Conditions studied

  • Coronary Artery Disease
  • Sleep Quality
  • Postoperative Delirium (POD)

Keywords

  • Coronary Artery Bypass Grafting
  • Eye Mask
  • Sleep Quality
  • Postoperative Delirium
  • Cardiac Surgery
  • Non-Pharmacological Intervention
  • Postoperative Nursing Care
03

In context

Coronary Artery Disease

4,857 studies on the registry are indexed under Coronary Artery Disease; 890 are open to participants now.

This study's planned enrollment of 100 is below the median of 124 across 3,006 interventional studies indexed under Coronary Artery Disease.

Browse Coronary Artery Disease studies →

Lead sponsor

Munzur University is the lead sponsor of 10 studies on the registry; 6 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

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 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

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
Terms in these criteria, in plain language(1)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

05

Study design

Phase
Not applicable
Primary purpose
Supportive care
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
100 participants (estimated)

Study arms

  • 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

  • No intervention
    Control Group

    Participants in this group will receive routine postoperative care without the use of an eye mask.

Interventions

  • OtherEye Mask

    A light-blocking eye mask will be used during nighttime sleep to reduce exposure to ambient light and support sleep.

06

What researchers measure

Primary outcomes

  1. Postoperative Sleep Quality Assessed Using the Richards-Campbell Sleep Questionnaire

    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.

    Time frame: Postoperative day 5, postoperative day 7, and the day of hospital discharge(postoperative day 8-10)

  2. Postoperative Delirium Assessed Using the Nursing Delirium Screening Scale

    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)

    Time frame: Postoperative day 5, postoperative day 7, and the day of hospital discharge (postoperative day 8-10)

07

Study locations

1 site
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Start is estimated for Sep 2026; primary completion for Nov 2026, 2 months later.

Of 753 non-industry interventional studies with no phase under Coronary Artery Disease, half reached primary completion within 33 months of starting (the median), counting those still running; a quarter within 15 and three quarters within 53. This study's planned 2 months is below that.

Counting every sponsor, half of 930 studies reached it within 30 months; a quarter within 15 and three quarters within 50.

How these figures are worked out, and which studies are left out of them.

Registered
Aug 6, 2026
First posted
Aug 17, 2026
StartEst.
Sep 15, 2026
Primary completionEst.
Nov 15, 2026
CompletionEst.
Dec 30, 2026
Last update
Aug 17, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Aug 17, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT07768020
Lead sponsor
Munzur University
Responsible party
Nilgün SÖYLEMEZ (Lecturer, PhD, Department of Surgical Nursing, Munzur University) — Principal investigator
First posted
Aug 17, 2026
Start date
Sep 15, 2026 (estimated)
Primary completion
Nov 15, 2026 (estimated)
Completion
Dec 30, 2026 (estimated)
Last update
Aug 17, 2026

Study contacts

Nilgün SÖYLEMEZ, PhD
Contact
nilgunsoylemez@munzur.edu.tr
+905439790424

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is not yet recruiting, as verified in Aug 2026. You cannot join it, but the record below documents what was studied.

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