Effects of Gunnar Computer Glasses on Viewing Comfort and Performance (NCT02925884) | Clinical Trial Compass
TerminatedNot Applicable
Effects of Gunnar Computer Glasses on Viewing Comfort and Performance
Stopped: The sponsor failed to provide financial support as promised.
United States35 participantsStarted 2013-06
Plain-language summary
The proposed study aims to test if Gunnar computer glasses provide any advantages, in comparison to no glasses, on the following aspects in computer-related office work:
* Any enhancement on the visual performance of the basic visual function, including visual acuity, contrast sensitivity, color discrimination, etc.
* Any enhancement on the visual performance of typical office work, including reading, word-spelling check, number searching, or target identification.
* Any benefit in objective viewing comfort measured with viewing distance, blink frequency, post-viewing pupil size.
* Any benefit in subjective viewing comfort reflected on the questionnaire of viewing symptom survey.
* Any benefit in viewing comfort and visual performance with increased environmental ventilation or under the strong glare.
* Any benefit in life quality from daily wearing (e.g., better comfort or sleep quality).
Who can participate
Age range
18 Years – 42 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:
* Subjects must be between 18 to 42 years old.
* Subjects must have a normal color vision (be able to identify the numbers in the color blind test.
* Subjects' near and far visual acuity with the better eye needs to be 20/25 or better (measured with a vision chart). Subjects can wear contact lenses (but not glasses) if usually wear them while working on computers.
* Subjects must routinely work on a computer or digital display for an average of 4 hours or more each day.
* Subjects can communicate in English fluently and are used to read English documents on a computer.
* Subjects must have a valid tax number or social security number to receive monetary compensation.
Exclusion Criteria:
* The difference in the prescription for both eyes is equal to or larger than 2 Diopters.
* Subjects have a cataract or have had cataract surgery.
* Subjects are sensitive to lights (photosensitivity).
* Subjects have prior incidents or are known to have claustrophobia.
* Subjects have been diagnosed with oculomotor diseases or central nervous system diseases, or with developmental, neurological, or psychiatric disorders (e.g., attention deficit hyperactivity disorder, autism, mental retardation).
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.
1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?
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.
What they're measuring
1
Subjective Rating of Gunnar Computer Glasses Preference
Timeframe: at the end of the study in Visit 3, up to day 16