Eye drop showdown: best way to widen pupils in diabetic patients revealed
NCT ID NCT07495670
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tested four different ways of giving dilating eye drops to 84 diabetic patients who needed eye exams for diabetic retinopathy. The goal was to find which method works best to get the pupil large enough for a good exam. Researchers measured pupil size and watched for side effects like changes in blood pressure or pulse.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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84 people
The number who actually took part.
- Started
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Nov 2024
- Finished
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Jan 2025
- 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.
- Ages
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18 years and older
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Diabetic patients who were scheduled for diabetic retinopathy screening at OPD eye * Age 18 years or older Exclusion Criteria: * Conditions potentially affecting pupillary reaction (e.g., history of uveitis, previous intraocular surgery, posterior synechiae) * Known allergies to the study medications * Systolic blood pressure \> 160 mmHg * Diastolic blood pressure \> 100 mmHg * Pulse rate \> 100 beats/min
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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.
Contacts and locations
Locations
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Burapha University
Chon Buri, 20131, Thailand
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Other studies related to the condition(s) this trial covers.
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