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Related Concept Videos

Diabetic Retinopathy01:27

Diabetic Retinopathy

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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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Photoreceptors and Visual Pathways01:22

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At the molecular level, visual signals trigger transformations in photopigment molecules, resulting in changes in the photoreceptor cell's membrane potential. The photon's energy level is denoted by its wavelength, with each specific wavelength of visible light associated with a distinct color. The spectral range of visible light, classified as electromagnetic radiation, spans from 380 to 720 nm. Electromagnetic radiation wavelengths exceeding 720 nm fall under the infrared category,...
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Related Experiment Video

Updated: Apr 25, 2026

Quantification of Vascular Parameters in Whole Mount Retinas of Mice with Non-Proliferative and Proliferative Retinopathies
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[Retinal vascular changes--predictive and prognostic factor in systemic disease].

Anca Delia Vicol, Tudor Bogdănici, Camelia Bogdănici

    Oftalmologia (Bucharest, Romania : 1990)
    |August 23, 2014
    PubMed
    Summary
    This summary is machine-generated.

    The retinal circulation offers insights into systemic microcirculation and ocular diseases like glaucoma. This meta-analysis reviews hemodynamic connections impacting retinal blood flow.

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    Area of Science:

    • Ophthalmology and Neuroscience
    • Vascular Biology
    • Microcirculation Research

    Context:

    • The retinal circulation serves as a non-invasive in vivo window to systemic microcirculation.
    • It holds relevance for ocular diseases like glaucoma (vascular theory) and systemic conditions (diabetes, hypertension, stroke).
    • Interactions between intraocular pressure, retinal vessels, and cerebrospinal fluid pressure are of significant interest.

    Purpose:

    • To review recent literature on the connections between hemodynamic structures.
    • To analyze the impact of these connections on retinal blood flow.

    Summary:

    • This meta-analysis synthesizes current research on the interplay of hemodynamic factors influencing retinal blood flow.
    • It examines the structural and functional similarities between the retinal vascular bed and other critical territories like the CNS, kidneys, and heart.
    • Findings highlight the retina's role in signaling systemic vascular health and disease.

    Impact:

    • Provides a comprehensive overview of current knowledge on retinal hemodynamics.
    • Enhances understanding of the vascular basis of glaucoma and systemic diseases.
    • Informs clinical and research perspectives for ophthalmologists and neuroscientists.