Filtered Eyewear to Prevent Light-induced Melatonin Suppression - Aim 1
United States29 participantsStarted 2024-05-01
Plain-language summary
The aim of this study is to determine the relative effectiveness of monocular and binocular light exposures, with and without selective blue-blocking filtering, on nocturnal melatonin suppression, subjective sleepiness, and visual performance of night shift workers.
Who can participate
Age range
18 Years
Sex
ALL
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Inclusion Criteria:
* Healthy
Exclusion Criteria:
* Bipolar disorder
* Seasonal depression
* Diabetes
* High blood pressure
* History of cancer
* Obstructing cataracts
* Macular degeneration
* Diabetic retinopathy
* Glaucoma
* Use of melatonin supplements
* Use of beta blockers
* Use of sleep medications
* Use of antidepressant medication
Questions worth asking your doctor
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
1This trial looked at whether filtered eyewear can prevent light from suppressing melatonin levels at night — is this something that might be relevant to improving my sleep quality, and what does my doctor think about the evidence so far?
2Since this trial is now completed and was measuring melatonin levels using something called AUC, has any data or results been published that my doctor could review to help us understand if light-filtering glasses actually made a meaningful difference?
3This study was listed as Phase NA, which often means it was more of a feasibility or observational study rather than a large controlled trial — does my doctor think the findings are strong enough to act on, or should I wait for more research before trying filtered eyewear as a sleep strategy?
4Are there other proven approaches to improving melatonin levels and sleep quality — like sleep hygiene changes, melatonin supplements, or light therapy — that my doctor would recommend alongside or instead of something like filtered eyewear?
5If my doctor thinks filtered eyewear could be worth trying based on this research, what type of lens filter would be most appropriate for my specific sleep concerns, and are there any risks or downsides I should know about?
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
Questions for the trial coordinator
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.