Clinical Report: Glycemic variability may signal retinal changes
Overview
A longitudinal study found that glycemic variability is associated with early neuroretinal changes in pediatric patients with type 1 diabetes. Specifically, greater glycemic variability correlated with thinner retinal layers, while greater time in range was linked to thicker layers.
Background
Understanding the relationship between glycemic variability and retinal changes is crucial for early detection of diabetic complications in pediatric patients with type 1 diabetes.
Data Highlights
| Measure | Type 1 Diabetes Patients | Controls |
|---|---|---|
| Inner retinal nerve fiber layer thickness | 20 μm | 21 μm |
Key Findings
- Inner retinal nerve fiber layer thickness was lower in type 1 diabetes patients compared to controls.
- During follow-up, significant thinning was observed in the inner ganglion cell layer and outer plexiform layer among patients.
- Greater glycemic variability was associated with thinner inner nuclear and outer plexiform layers.
- Greater time in range correlated with thicker retinal layers.
- Changes in retinal layers correlated with neuropathy screening scores and blood pressure changes.
Clinical Implications
Clinicians should consider monitoring glycemic variability in pediatric patients with type 1 diabetes as it may provide insights into early neuroretinal changes. This could inform screening strategies and management of potential diabetic complications.
Conclusion
The study suggests that glycemic variability may serve as a marker for early neuroretinal changes in pediatric patients with type 1 diabetes, warranting further investigation into its predictive value for diabetic neuropathy.
Related Resources & Content
- Menduni M, et al., Scientific Reports, 2026 -- Longitudinal effect of glycaemic variability on retinal neurodegeneration and neuropathic characteristics in paediatric patients with type 1 diabetes mellitus
- Frontiers in Endocrinology — Does glycemic variability from continuous glucose monitoring predict retinal neurodegeneration sooner than HbA1c in individuals without visible retinopathy?
- Retinal Physician — Impact of Glycemic Control and Hypoglycemia on Diabetic Retinopathy
- Retinal Physician — Glycemic Control a Possible Factor in DR Progression
- American Diabetes Association — Children and Adolescents: Standards of Care in Diabetes—2026
- New England Journal of Medicine — The Effect of Intensive Treatment of Diabetes on the Development and Progression of Long-Term Complications in Insulin-Dependent Diabetes Mellitus
- retinal physician — Impact of Glycemic Control and Hypoglycemia on Diabetic Retinopathy
- 14. Children and Adolescents: Standards of Care in Diabetes—2026 | Diabetes Care | American Diabetes Association
- The Effect of Intensive Treatment of Diabetes on the Development and Progression of Long-Term Complications in Insulin-Dependent Diabetes Mellitus | New England Journal of Medicine
- Longitudinal effect of glycaemic variability on retinal neurodegeneration and neuropathic characteristics in paediatric patients with type 1 diabetes mellitus | Scientific Reports
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