Coronary Artery DiseaseEYE-CABGNCT07768020
Effect of Eye Mask Use on Sleep Quality and Delirium After CABG Surgery
A study testing Eye Mask in people with Coronary Artery Disease and Sleep Quality, run by Munzur University at 1 site in Turkey (Türkiye).
Trial 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. Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Coronary Artery Disease, Sleep Quality, Postoperative Delirium (POD)
- What is being tested?
- Eye Mask
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 100 participants
- Where
- 1 siteTurkey (Türkiye)
- Study dates
- 15 Sep 2026to 30 Dec 2026
- Phase
- Interventional
- Are there results?
- Not yet: the study is under way
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 years and older
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- 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
Who cannot join
- 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
Trial locations and contacts
1 site in 1 country. Contact the study team or a site near you to ask about taking part.
Turkey (Türkiye)1 site
Ataturk University Research Hospital
Erzurum, Erzurum, 25040
Nilgün SÖYLEMEZ, PhD, +905439790424, nilgunsoylemez@munzur.edu.tr
Beyzanur KIZILOĞLU AĞGÜN, PhD
About this study
Official title: 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.
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.
- Being tested
- Eye Mask
- Keywords
- Coronary Artery Bypass Grafting, Eye Mask, Sleep Quality, Postoperative Delirium, Cardiac Surgery, Non-Pharmacological Intervention, Postoperative Nursing Care
- Medical subject headings
- Coronary Artery Disease, Sleep Initiation and Maintenance Disorders, Emergence Delirium
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Eye MaskOther
A light-blocking eye mask will be used during nighttime sleep to reduce exposure to ambient light and support sleep.
| Study group | Role | What they receive |
|---|---|---|
| Eye Mask Group | Experimental | Participants in this group will wear an eye mask during nighttime sleep following coronary artery bypass graft surgery in addition to routine postoperative care. Receives: Other: Eye Mask |
| Control Group | No intervention | Participants in this group will receive routine postoperative care without the use of an eye mask. |
What is being measured
The primary outcome is the main question the study is designed to answer.
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.
Measured: 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
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)
Measured: Postoperative day 5, postoperative day 7, and the day of hospital discharge (postoperative day 8-10)
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted17 Aug 2026
- Study start15 Sep 2026 (estimated)
- Primary completion15 Nov 2026 (estimated)
- Study completion30 Dec 2026 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Coronary Artery DiseaseStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Supportive care
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Enrolment
- 100 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Munzur University
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Nilgün SÖYLEMEZ, Munzur University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07768020
- Sponsor's protocol ID
- EYEMASK
- Acronym
- EYE-CABG
- Status last verified
- Aug 2026
- First submitted
- 6 Aug 2026
- Last updated
- 17 Aug 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Study at a glance
From the registry record, last updated by the sponsor on 17 Aug 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- The Effect of Eye Mask Use on Sleep Quality and Delirium Levels in Patients Following Coronary Artery Bypass Graft Surgery
- ClinicalTrials.gov ID
- NCT07768020
- Acronym / sponsor ID
- EYE-CABG / EYEMASK
- Keywords
- Coronary Artery Bypass Grafting, Eye Mask, Sleep Quality, Postoperative Delirium, Cardiac Surgery, Non-Pharmacological Intervention, Postoperative Nursing Care
- Study type
- Interventional
- Recruitment status
- Not yet recruiting
- Enrolment
- 100 participants (estimated)
- Lead sponsor
- Munzur UniversityUniversity, hospital or other
- Study start
- 15 Sep 2026 (estimated)
- Primary completion
- 15 Nov 2026 (estimated)
- Study completion
- 30 Dec 2026 (estimated)
- First posted
- 17 Aug 2026 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
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.
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 design
- Primary purpose
- Supportive care
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Eye Mask Group | Experimental | Other: Eye MaskParticipants in this group will wear an eye mask during nighttime sleep following coronary artery bypass graft surgery in addition to routine postoperative care. |
| Control Group | No intervention | –Participants in this group will receive routine postoperative care without the use of an eye mask. |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (8 listed)
- 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
Key exclusion criteria (6 listed)
- 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
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Eye MaskA light-blocking eye mask will be used during nighttime sleep to reduce exposure to ambient light and support sleep. | Other | Eye Mask Group |
Primary outcome
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 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)
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 17 Aug 2026.
- Individual participant dataSharing planned: No
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Eye Mask in people with Coronary Artery Disease and Sleep Quality, run by Munzur University at 1 site in Turkey (Türkiye).
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 8 inclusion and 6 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: opening soon, as of the sponsor's last update on 17 Aug 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Turkey (Türkiye). Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
Contact Nilgün SÖYLEMEZ, PhD (+905439790424, nilgunsoylemez@munzur.edu.tr), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
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)). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 17 Aug 2026.