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Diabetic Retinopathy

Diabetic Retinopathy

DefinitionDiabetic retinopathy is a microvascular complication of diabetes affecting the retinal blood vessels.Risk FactorsDiabetic retinopathy is present in almost all individuals with type 1 diabetes and more than 60% of those with type 2 diabetes after two decades of disease.The risk increases with poor glycemic control, hypertension, dyslipidemia, smoking, pregnancy, and puberty.Although cataracts and glaucoma are also more frequent in people with diabetes, retinopathy remains the leading...

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Related Experiment Video

Updated: May 2, 2026

Oxygen-Induced Retinopathy Model for Ischemic Retinal Diseases in Rodents

Oxygen-Induced Retinopathy Model for Ischemic Retinal Diseases in Rodents

Published on: September 16, 2020

Stroke-Induced Retinal Dysfunction: Mechanisms, Diagnostics, and Future Directions.

Ting Wang^1,2, Zirun Feng^1,3, Jin Yang^2,4

¹Department of Ophthalmology, Tongren People's Hospital, Tongren, Guizhou, China.

Aging and Disease

|October 13, 2025

Summary

The retina offers a non-invasive window into cerebrovascular health, revealing stroke

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Last Updated: May 2, 2026

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Area of Science:

Ophthalmology and Neurology
Neuroscience
Medical Imaging

Background:

Stroke significantly impacts retinal function, causing ischemia, microvascular damage, and blood-retina barrier disruption.
Retinal changes manifest as visual impairments like field defects and reduced acuity.
The retina shares similarities with the brain, making it a valuable indicator of cerebrovascular health.

Purpose of the Study:

To review historical, diagnostic, and therapeutic advancements concerning the retina in stroke.
To highlight the retina's dual role as a marker and target for stroke-related dysfunction.
To explore the potential of retinal research in improving stroke diagnosis and treatment.

Main Methods:

Comprehensive literature review of stroke and retinal studies.
Analysis of advancements in retinal imaging technologies like Optical Coherence Tomography (OCT) and OCT Angiography (OCTA).
Examination of emerging therapeutic strategies and interdisciplinary collaboration in stroke care.

Main Results:

The retina serves as a non-invasive biomarker for cerebrovascular health due to shared embryological origins and structure with the brain.
Advanced imaging techniques (OCT, OCTA) reveal strong correlations between retinal alterations and cerebral pathologies.
New treatments, including anti-inflammatory and antioxidant therapies, alongside collaborative care, are improving patient outcomes.

Conclusions:

The retina is a crucial diagnostic and therapeutic target for understanding and managing stroke.
Translational research connecting biological insights with clinical applications promises enhanced early diagnosis and rehabilitation.
Interdisciplinary approaches and novel therapies leveraging retinal insights are transforming stroke care.