Pain, PostoperativeLITENSNCT06772519
Relieving Surgical Pain and Nausea With Light Therapy
A study testing green colored lens glasses, blue colored lens glasses and colorless (transparent) lens glasses in people with Pain, Postoperative and Nausea and Vomiting, Postoperative, run by Nuran Ayşen Pamir Aksoy at 1 site in Turkey (Türkiye).
Trial summary
The goal of this clinical trial is to investigate the effectiveness of colored (green and blue lens) glasses as a non-pharmacological method in relieving post-surgical pain and postoperative nausea in kidney donors. Read more about this study
- Who is it for?
- Ages 18 years and olderHealthy volunteers can take part
- Conditions the study is for
- Pain, Postoperative, Nausea and Vomiting, Postoperative
- What is being tested?
- green colored lens glasses, blue colored lens glasses and colorless (transparent) lens glasses
- Type of treatment
- Medical device
- Could I receive a placebo?
- Yes, some participants may receive a placebo
- How many people
- 48 participants
- Where
- 1 siteTurkey (Türkiye)
- Study dates
- 14 Jan 2025to 30 Dec 2025
- Phase
- Interventional
- Are there results?
- None posted in the registry
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
- Healthy volunteers accepted
- Adult, Older adult
Who may be able to join
- Being a donor for kidney transplantation
- Not having an obstacle to wearing glasses
- Being able to communicate verbally
Who cannot join
- Being color blind • Developing post-operative complications during the study period
Trial locations and contacts
1 site in 1 country.
Turkey (Türkiye)1 site
Acibadem Atakent Hospital
Istanbul, Atakent, 34752
About this study
Official title: Is It Possible to Reduce Surgical Pain and Nausea With Light Therapy? A Randomized Controlled, Non-Pharmacological Approach
The goal of this clinical trial is to investigate the effectiveness of colored (green and blue lens) glasses as a non-pharmacological method in relieving post-surgical pain and postoperative nausea in kidney donors. The main hypothesis it aims to test:
H1: Postoperative use of green-lensed glasses by patients who are kidney donors is effective in relieving surgical pain and postoperative nausea.
Read more
H2: Postoperative use of blue-lensed glasses by patients who are kidney donors is effective in relieving surgical pain and postoperative nausea.
Researchers will compare the blue-lens glasses and green-lens glasses groups to the transparent (colorless) glasses group and the non-glasses group to see if the colored lenses have an effect on postoperative pain and nausea.
Participants in the intervention groups will be asked
- to wear the glasses (according to their randomly assigned group (blue/green/colorless/), immediately after they admitted to the ward postoperatively, at least 8 hours in a day, until their discharge
- to respond the pain and nausea assessment (every 2 hours during postop day 1 and every 4 hours during postop day 2) until their discharge
Participants in the control group will be asked
- to respond the pain and nausea assessment (every 2 hours during postop day 1 and every 4 hours during postop day 2) until their discharge
Read the detailed description
Since the hospital's architecture and clinical operation where the data will be collected have features that prevent patients from different groups from meeting, the single blind feature can be preserved. The pain assessment of the patients will be made with the numerical pain scale, and the nausea assessment will be made with the numerical nausea rating scale. In addition, data will be collected with the Patient Information Form prepared by the researchers in line with the literature.
- Being tested
- green colored lens glasses, blue colored lens glasses, colorless (transparent) lens glasses
- Keywords
- colored-lens glasses, postoperative pain, organ donor, kidney transplantation, postoperative nausea, blue light, green light
- Medical subject headings
- Pain, Postoperative, Postoperative Nausea and Vomiting
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
green colored lens glassesDevice
Also called green lens glasses
Researchers will compare the blue-lens glasses and green-lens glasses groups to the transparent (colorless) glasses group and the non-glasses group to see if the colored lenses have an effect on postoperative pain and nausea.
blue colored lens glassesDevice
Also called blue lens glasses, colored lens glasses
Researchers will compare the blue-lens glasses and green-lens glasses groups to the transparent (colorless) glasses group and the non-glasses group to see if the colored lenses have an effect on postoperative pain and nausea.
colorless (transparent) lens glassesDevice
Researchers will compare the blue-lens glasses and green-lens glasses groups to the transparent (colorless) glasses group and the non-glasses group to see if the colored lenses have an effect on postoperative pain and nausea.
| Study group | Role | What they receive |
|---|---|---|
| Study Group-Blue lens glasses | Experimental | Patients who assigned to this group will wear blue-lens glasses postoperatively (min 8 h in a day) Receives: Device: blue colored lens glasses |
| Study Group-Green lens glasses | Experimental | Patients who assigned to this group will wear green-lens glasses postoperatively (min 8 h in a day) Receives: Device: green colored lens glasses |
| Study Group-colorless (transparent) lens glasses | Placebo comparator | Patients who assigned to this group will wear colerless (transparanet)-lens glasses postoperatively (min 8 h in a day) Receives: Device: colorless (transparent) lens glasses |
| Control group | No intervention | Patients in this group will not be wearing any glasses. Patients will be asked to participate for postoperative pain and nausea assesment. |
What is being measured
The primary outcome is the main question the study is designed to answer.
Post-operative pain
Post-operative pain level according to the numerical pain assessment scale
Measured: every 2 h during the post operative day1, and every 4 h during postoperative day 2.
Post-operative nausea
Postoperative nausea level according to the numerical nausea rating scale
Measured: every 2 h during the post operative day1, and every 4 h during postoperative day 2.
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted13 Jan 2025
- Study start14 Jan 2025
- Primary completion30 Dec 2025
- Study completion30 Dec 2025
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Pain, PostoperativeStudies 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
- Single blind
- Who is masked
- Participant
- Enrolment
- 48 participants (actual)
Sponsor and investigators
- Lead sponsor
- Nuran Ayşen Pamir Aksoy
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor-investigator, Nuran Ayşen Pamir Aksoy, Acibadem University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT06772519
- Sponsor's protocol ID
- 2024-18-687
- Acronym
- LITENS
- Status last verified
- Jan 2026
- First submitted
- 10 Jan 2025
- Last updated
- 12 Jan 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- Undecided
Study at a glance
From the registry record, last updated by the sponsor on 12 Jan 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Is It Possible to Reduce Surgical Pain and Nausea With Light Therapy? A Randomized Controlled, Non-Pharmacological Approach
- ClinicalTrials.gov ID
- NCT06772519
- Acronym / sponsor ID
- LITENS / 2024-18-687
- Keywords
- colored-lens glasses, postoperative pain, organ donor, kidney transplantation, postoperative nausea, blue light, green light
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 48 participants (actual)
- Lead sponsor
- Nuran Ayşen Pamir AksoyUniversity, hospital or other
- Study start
- 14 Jan 2025 (actual)
- Primary completion
- 30 Dec 2025 (actual)
- Study completion
- 30 Dec 2025 (actual)
- First posted
- 13 Jan 2025 (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.
The goal of this clinical trial is to investigate the effectiveness of colored (green and blue lens) glasses as a non-pharmacological method in relieving post-surgical pain and postoperative nausea in kidney donors. The main hypothesis it aims to test:
H1: Postoperative use of green-lensed glasses by patients who are kidney donors is effective in relieving surgical pain and postoperative nausea.
H2: Postoperative use of blue-lensed glasses by patients who are kidney donors is effective in relieving surgical pain and postoperative nausea.
Researchers will compare the blue-lens glasses and green-lens glasses groups to the transparent (colorless) glasses group and the non-glasses group to see if the colored lenses have an effect on postoperative pain and nausea.
Participants in the intervention groups will be asked
- to wear the glasses (according to their randomly assigned group (blue/green/colorless/), immediately after they admitted to the ward postoperatively, at least 8 hours in a day, until their discharge
- to respond the pain and nausea assessment (every 2 hours during postop day 1 and every 4 hours during postop day 2) until their discharge
Participants in the control group will be asked
- to respond the pain and nausea assessment (every 2 hours during postop day 1 and every 4 hours during postop day 2) until their discharge
Detailed description
Since the hospital's architecture and clinical operation where the data will be collected have features that prevent patients from different groups from meeting, the single blind feature can be preserved. The pain assessment of the patients will be made with the numerical pain scale, and the nausea assessment will be made with the numerical nausea rating scale. In addition, data will be collected with the Patient Information Form prepared by the researchers in line with the literature.
Study design
- Primary purpose
- Supportive care
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Single blind (participant)
- Number of arms
- 4
| Arm | Type | Receives |
|---|---|---|
| Study Group-Blue lens glasses | Experimental | Device: blue colored lens glassesPatients who assigned to this group will wear blue-lens glasses postoperatively (min 8 h in a day) |
| Study Group-Green lens glasses | Experimental | Device: green colored lens glassesPatients who assigned to this group will wear green-lens glasses postoperatively (min 8 h in a day) |
| Study Group-colorless (transparent) lens glasses | Placebo comparator | Device: colorless (transparent) lens glassesPatients who assigned to this group will wear colerless (transparanet)-lens glasses postoperatively (min 8 h in a day) |
| Control group | No intervention | –Patients in this group will not be wearing any glasses. Patients will be asked to participate for postoperative pain and nausea assesment. |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (3 listed)
- Being a donor for kidney transplantation
- Not having an obstacle to wearing glasses
- Being able to communicate verbally
Key exclusion criteria (1 listed)
- Being color blind • Developing post-operative complications during the study period
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 |
|---|---|---|
| green colored lens glassesAlso: green lens glassesResearchers will compare the blue-lens glasses and green-lens glasses groups to the transparent (colorless) glasses group and the non-glasses group to see if the colored lenses have an effect on postoperative pain and nausea. | Device | Study Group-Green lens glasses |
| blue colored lens glassesAlso: blue lens glasses, colored lens glassesResearchers will compare the blue-lens glasses and green-lens glasses groups to the transparent (colorless) glasses group and the non-glasses group to see if the colored lenses have an effect on postoperative pain and nausea. | Device | Study Group-Blue lens glasses |
| colorless (transparent) lens glassesResearchers will compare the blue-lens glasses and green-lens glasses groups to the transparent (colorless) glasses group and the non-glasses group to see if the colored lenses have an effect on postoperative pain and nausea. | Device | Study Group-colorless (transparent) lens glasses |
Primary outcome
Post-operative pain
Time frame: every 2 h during the post operative day1, and every 4 h during postoperative day 2.
Post-operative pain level according to the numerical pain assessment scale
Post-operative nausea
Time frame: every 2 h during the post operative day1, and every 4 h during postoperative day 2.
Postoperative nausea level according to the numerical nausea rating scale
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 12 Jan 2026.
- Individual participant dataSharing planned: Undecided
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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. This study is not recruiting at the moment.
The record lists no contact. Use the official record to reach the sponsor.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing green colored lens glasses, blue colored lens glasses and colorless (transparent) lens glasses in people with Pain, Postoperative and Nausea and Vomiting, Postoperative, run by Nuran Ayşen Pamir Aksoy 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 3 inclusion and 1 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: finished, as of the sponsor's last update on 12 Jan 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. Some participants in this study may receive a placebo. 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?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Post-operative pain (time frame: every 2 h during the post operative day1, and every 4 h during postoperative day 2.). 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 12 Jan 2026.