The Role of Spectral Filtering in a Spectrally Adjustable Ocular Photosensitivity Analyzer (NCT04811079) | Clinical Trial Compass
CompletedNot Applicable
The Role of Spectral Filtering in a Spectrally Adjustable Ocular Photosensitivity Analyzer
United States53 participantsStarted 2021-07-14
Plain-language summary
This is a 6-visit, single-center, non-dispensing, randomized, single-masked, 5×5 crossover study. Subjects will participate in 6 scheduled over the duration of approximately 10.5 months.
Who can participate
Age range
18 Years – 30 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
. The subject must read and sign the Informed Consent form.
. The subject must appear able and willing to adhere to the instructions set forth in this clinical protocol.
. Healthy adult males or females age ≥18 and ≤30 years of age.
. Normal color vision as measured using the Ishihara 38-plate test.
. Normal stereopsis as measured by a suitable test.
. Auto-refraction must show a spherical component of -2.00 through +2.00 D, and a cylindrical component of 0.00 through 1.50 D.
. The subject's distance refractive sphere must be between -2.00 and +2.00 D in each eye.
. The subject's distance refractive cylinder must be ≤ 1.50 D in each eye.
Exclusion criteria
. Currently pregnant or lactating (subjects who become pregnant during the study will be discontinued).
. History of refractive surgery or other ocular surgery.
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.