NCT07495670Completed
Comparison of 4 Methods of Eye Drops for Pupil Dilation in Diabetic Patients
Comparison of Mydriatic Effects Between 4 Regimens of a Tropicamide-Phenylephrine Combination in Diabetic Patients
Source: ClinicalTrials.gov · Last updated 27 Mar 2026
Brief summary (registry, in English)
Pupil dilation is required for many eye conditions. Diabetic patients may need more dilating eye drops to have pupil size large enough for eye exams. This study compares 4 methods of eye drops for pupil dilation in diabetic patients scheduled for retinopathy screening. Possible side effects of the eye drops are monitored during the study.
- Status (registry)
- Completed
- Study type
- Interventional
- Enrollment
- 84 (actual)
- First submitted
- 19 Mar 2026
- Start date
- 4 Nov 2024
- Primary completion date
- 31 Jan 2025
- Lead sponsor
- Burapha University
- NCT number
- NCT07495670
What you commit to
- Study type: Interventional
- Participants enrolled: 84
- From 4 Nov 2024 to the primary completion date, 31 Jan 2025
- 1 site in 1 country
- Visits and tests: ask the trial team, the registry does not list them
Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.
Who cannot take part
Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.
Prior treatment
- Conditions potentially affecting pupillary reaction (e.g., history of uveitis, previous intraocular surgery, posterior synechiae)
Other illness
- Known allergies to the study medications
Other
- Systolic blood pressure \> 160 mmHg
- Diastolic blood pressure \> 100 mmHg
- Pulse rate \> 100 beats/min
Who the study is looking for
- Diabetic patients who were scheduled for diabetic retinopathy screening at OPD eye
- Age 18 years or older
Age in the registry: 18 years to - · Sex: All · Does not accept healthy volunteers
Sites (1)
Sites in registry order. Pick your city on the disease page to sort them by distance.
| Site | City | Country | Site status |
|---|---|---|---|
| Burapha University Coordinator of this site? Confirm its status | Chon Buri | Thailand | Unknown status |
This page is information, not medical advice. Discuss any trial with your doctor.