Eye Scans of Small Retinal Blood Vessels in People With Diabetic Retinopathy
Uses eye scans to look at retinal blood vessels in diabetic retinopathy.
Plain-language title generated from the registry record
Registry title: Assessment of Retinal Microvascular Changes by OCT Angiography in Diabetic Retinopathy
Key facts
- Where
- Sohag, EgyptSee the site
AI summary: who the study is looking for
From the trial's eligibility criteria. Machine-read from the registry text on this page, so it can be wrong. The registry text below and the trial team decide who can take part.
The trial is looking for adults aged 18 to 80 with diabetic retinopathy who can have eye scans (OCT and OCT angiography) and an HbA1c blood test.
- Age
- 18 to 80 years
- Sex
- All sexes can join.
- Disease stage
- Diabetic retinopathy. The study looks at different stages of the disease.
- Earlier treatment
- People with previous vitreoretinal surgery cannot join.
- Biomarker or test result
- An HbA1c measurement must be available during the study period.
Main reasons for not taking part
- Previous vitreoretinal surgery
- Dense cataract or vitreous hemorrhage that blurs the images
- Other retinal vessel diseases, such as retinal vein occlusion
- Glaucoma or optic nerve diseases that affect vision
- High myopia (>6 diopters)
Read by machine on 9 November 2026.
Could this be for you?
Answer for yourself. This is not a decision: only the study team can say whether you can take part.
- Are you between 18 and 80 years old?
Source: NCT07747428, who can take part
Where in Egypt
- Sohag Ophthalmology HospitalSohag, EgyptTaking people
Questions to ask the study team
- How often do I need to come in, and for how long each time?
- Are travel costs paid?
- Can I keep my own doctor?
- What happens if I want to stop?
Contact the study team: see the registry record → Contacts and Locations
Print a page for my doctorTrial details
- Who runs it
- Sohag University
- Trial code
- NCT07747428
- Record updated
- 5 August 2026
- Original description
This observational cross-sectional study aims to assess retinal microvascular changes using optical coherence tomography angiography (OCTA) in patients with diabetic retinopathy. The study will evaluate retinal vessel density and foveal avascular zone parameters and investigate their correlation with best-corrected visual acuity and glycemic control (HbA1c) across different stages of diabetic retinopathy. The findings may improve understanding of retinal microvascular alterations and their clinical significance.Read full original descriptionShow less
Assessment of Retinal Microvascular Changes by OCT Angiography and Their Correlation With Visual Acuity and Glycemic Control Across Different Stages of Diabetic Retinopathy
This observational cross-sectional study aims to assess retinal microvascular changes using optical coherence tomography angiography (OCTA) in patients with diabetic retinopathy. The study will evaluate retinal vessel density and foveal avascular zone parameters and investigate their correlation with best-corrected visual acuity and glycemic control (HbA1c) across different stages of diabetic retinopathy. The findings may improve understanding of retinal microvascular alterations and their clinical significance.
Inclusion: -; Adults aged 18 to 80 years; Patients diagnosed with diabetic retinopathy; Ability to undergo complete ophthalmic examination including OCT and OCT angiography; Availability of HbA1c measurement within the study period; Ability and willingness to provide written informed consent.
Exclusion: Previous vitreoretinal surgery; Significant media opacity affecting image quality (e.g., dense cataract or vitreous hemorrhage); Other retinal vascular diseases (e.g., retinal vein occlusion); Glaucoma or optic nerve diseases affecting visual function; High myopia (>6 diopters); Poor-quality OCTA images due to motion artifacts or poor fixation; Refusal or inability to provide informed consent; -.