New digital eye test in turkish put to the test
NCT ID NCT07240480
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study checks if a Turkish version of the DDIVAT digital vision test gives the same results as the standard Snellen eye chart. About 200 Turkish-speaking adults, with or without glasses, will take both tests. No drugs or procedures are involved, and there are no risks.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Participants
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About 200 people
The number the study aims to enrol. It can still change while the study runs.
- Expected to start
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Dec 2025
An estimate. Start dates often move.
- Expected to finish
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May 2026
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
Who is studied
Turkish-speaking adults (aged 18 and older), including both healthy volunteers and ophthalmology clinic patients, will be recruited from Trakya University Hospital, Department of Ophthalmology (Edirne, Türkiye).
- Ages
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18 years and older
- Sex
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Anyone
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Adults aged 18 years or older Turkish-speaking individuals able to understand the study purpose Willingness to participate and provide written informed consent Participants with or without refractive errors (e.g., myopia, hyperopia, astigmatism) Exclusion Criteria: * Age below 18 years Individuals unable to complete visual acuity testing Presence of severe ocular pathology (e.g., corneal opacity, retinal detachment) that prevents accurate measurement Cognitive or communication difficulties preventing informed consent
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
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Other studies related to the condition(s) this trial covers.
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