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the aim of this study is to assess the impact of duration of DM on OCTA parameters in diabetic patients without clinical Diabetic retinopathy.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| non-diabetic | patients who are above 40 years old and don't have diabetes |
| |
| diabetic (0-5y) | patients who are above 40 years old and have diabetes for less than 5 years |
| |
| diabetics (5-10y) | patients who are above 40 years old and have diabetes for 5-10 years |
| |
| diabetics (10y < ) | patients who are above 40 years old and have diabetes for more than 10 years |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| optical coherence tomography angiography | Diagnostic Test | A non-invasive eye imaging technique that creates high-resolution, 3D maps of blood flow in the retina and choroid by comparing sequential OCT scans to detect the motion of red blood cells to provide a visual contrast to the static tissue that allows the visualization the retinal microvasculature without needing an injectable dye, unlike traditional angiography. |
| Measure | Description | Time Frame |
|---|---|---|
| FAZ metrics | FAZ area, FAZ perimeter & FAZ flow density | baseline |
| Superficial Vessel Density | foveal, average parafoveal & average perifoveal | baseline |
| Deep Vessel Density | foveal, average parafoveal, average perifoveal | baseline |
| SCP thickness | foveal, average parafoveal & average perifoveal | baseline |
| DCP thickness | foveal, average parafoveal & average perifoveal | baseline |
| Sectoral superficial vessel density | superior parafoveal, inferior parafoveal, nasal parafoveal, temporal parafoveal, superior perifoveal, inferior perifoveal, nasal perifoveal & temporal perifoveal | baseline |
| Sectoral deep vessel density | superior parafoveal, inferior parafoveal, nasal parafoveal, temporal parafoveal, superior perifoveal, inferior perifoveal, nasal perifoveal & temporal perifoveal | baseline |
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Inclusion Criteria:
Exclusion Criteria:
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patients will be recruited from diabetics who will present for retinopathy screening examination at outpatient clinic of Sohag University Hospital.
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Sohag university hospital | Sohag | Sohag Governorate | 82749 | Egypt |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 32053551 | Result | Rao HL, Pradhan ZS, Suh MH, Moghimi S, Mansouri K, Weinreb RN. Optical Coherence Tomography Angiography in Glaucoma. J Glaucoma. 2020 Apr;29(4):312-321. doi: 10.1097/IJG.0000000000001463. |
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| Type | Includes Protocol | Includes SAP | Includes ICF | Document Label | Document Date | Document Uploaded Date | Document File Name |
|---|---|---|---|---|---|---|---|
| Prot_SAP | Yes | Yes | No | Study Protocol and Statistical Analysis Plan | Apr 25, 2024 |
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|
| Jun 8, 2024 |
| Prot_SAP_000.pdf |
| ID | Term |
|---|---|
| D003930 | Diabetic Retinopathy |
| ID | Term |
|---|---|
| D012164 | Retinal Diseases |
| D005128 | Eye Diseases |
| D003925 | Diabetic Angiopathies |
| D014652 | Vascular Diseases |
| D002318 | Cardiovascular Diseases |
| D048909 | Diabetes Complications |
| D003920 | Diabetes Mellitus |
| D004700 | Endocrine System Diseases |
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