SUBJECTIVE REFRACTION WITH LIGHTFIELD TECHNOLOGY (NCT06583954) | Clinical Trial Compass
CompletedNot Applicable
SUBJECTIVE REFRACTION WITH LIGHTFIELD TECHNOLOGY
Switzerland120 participantsStarted 2025-02-15
Plain-language summary
The aim of this study is to test whether it is possible in principle to determine defective vision using light field technology. The measurements with this first prototype will be compared with the results of the conventional method for subjective refraction determination and those using a phoropter (Vision R-800 phoropter).
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:
* Minimum age of 18 years
* Best corrected visual acuity ≥ 0.8 (logMAR ≤ 0.1).
* Dioptric range for hypermetropia: ≤ +4.50 D.
* Dioptric range for myopia: ≥ -6.50 D.
* Dioptric range for cylinder: ≤ -2.00 D.
* Good general health, i.e.no systemic disease such as diabetes or rheumatism which could influence ocular health
* No ocular pathology or history of (intra)ocular surgery except for cataract surgery
Exclusion Criteria:
* • Contact lens wear during the days of visit
* Binocular vision problems (e.g. amblyopia, strabismus).
* Inability to follow the procedures of the investigation, such as language problems, psychological disorders and dementia
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 used something called 'lightfield technology' to measure refractive errors — how does this approach compare to the standard way my prescription is currently being determined, and could it make a meaningful difference in accuracy for me?
2Since this trial has already been completed, have the results been published or shared anywhere, and is there anything in the findings that might be relevant to how my refractive error is being managed?
3The trial focused specifically on the precision of measuring refractive error — does that mean it was testing how consistent or repeatable the measurements are, and why does that matter for getting the right prescription for my eyes?
4Are there any eye clinics or practices already using lightfield technology for refraction testing based on this kind of research, and is it something that might be available to me?
5Given that this study is categorized as 'not applicable' for phase, meaning it wasn't testing a drug or implant, does that change how cautious I should be about the findings compared to a traditional clinical drug trial?
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.