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Retinal Vascular Reactivity as Assessed by Optical Coherence Tomography Angiography
Published on: March 26, 2020
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Early Retinal Changes Detected Using Optical Coherence Tomography Angiography in Youth with Type 1 Diabetes Mellitus:
I-Hsin Ma1,2, Wei-Lun Huang1,2, Yao-Lin Liu2
1Department of Ophthalmology, National Taiwan University Hospital, Hsinchu Branch, Hsinchu, Taiwan.
Summary
Optical coherence tomography angiography (OCTA) reveals early microvascular changes in children with type 1 diabetes mellitus (T1DM). These OCTA-detected alterations in retinal vessel density may precede clinically visible signs of diabetic retinopathy.
Area of Science:
- Ophthalmology
- Diabetology
- Medical Imaging
Background:
- Diabetic retinopathy incidence in adolescents with type 1 diabetes mellitus (T1DM) remains high despite current management.
- Early detection of retinal changes in T1DM is crucial for preventing vision loss.
- Optical coherence tomography angiography (OCTA) offers a non-invasive method to assess retinal microvasculature.
Purpose of the Study:
- To investigate early retinal microvascular changes in children with T1DM using OCTA.
- To correlate OCTA findings with clinical parameters in pediatric T1DM patients.
- To propose a model for the sequence of retinal changes in T1DM.
Main Methods:
- Prospective case-control study at National Taiwan University Hospital (2021-2023).
- Recruitment of children with T1DM and age-matched controls.
- Comprehensive ophthalmological examinations and OCTA imaging for all participants.
Main Results:
- T1DM group showed decreased macular vessel density in superficial and deep vascular plexuses.
- Full retinal thickness was increased in the perifoveal annulus of T1DM patients.
- Prepubertal T1DM onset negatively impacted the superficial capillary plexus; other DM factors showed no significant correlation.
Conclusions:
- OCTA detected early, subclinical microvascular reductions in T1DM children.
- Retinal layer thickness was preserved, indicating early vascular changes precede structural alterations.
- Microvascular changes detectable by OCTA may occur sequentially before clinically apparent retinopathy.
Keywords:
Diabetic retinopathyOptical coherence tomography angiographyRetinal changesType 1 diabetes mellitusMore Related Videos
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