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  2. Hypertensive retinopathy - Wikipedia

    en.wikipedia.org/wiki/Hypertensive_retinopathy

    Signs of damage to the retina caused by hypertension include: [citation needed]. Laser Doppler imaging of the papilla of a patient with hypertension. Arteriolar changes, such as generalized arteriolar narrowing, focal arteriolar narrowing, arteriovenous nicking, changes in the arteriolar wall (arteriosclerosis) and abnormalities at points where arterioles and venules cross.

  3. Blood–retinal barrier - Wikipedia

    en.wikipedia.org/wiki/Blood–retinal_barrier

    The blood retinal barrier has two components: the retinal vascular endothelium and the retinal pigment epithelium. [2] Retinal blood vessels that are similar to cerebral blood vessels maintain the inner blood-ocular barrier. This physiological barrier comprises a single layer of non-fenestrated endothelial cells, which have tight junctions.

  4. Cerebroretinal microangiopathy with calcifications and cysts

    en.wikipedia.org/wiki/Cerebroretinal...

    The vessel walls are weak and leak blood plasma and lipid within and underneath the retina. This leakage can lead to exudative retinal detachment, also known as exudative retinopathy in this context. The detachment typically has a yellowish tint because the fluid under the retina contains lipid. These findings mimic Coats disease. [9]

  5. Blood–ocular barrier - Wikipedia

    en.wikipedia.org/wiki/Blood–ocular_barrier

    The blood–ocular barrier is a barrier created by endothelium of capillaries of the retina and iris, ciliary epithelium and retinal pigment epithelium. [1] It is a physical barrier between the local blood vessels and most parts of the eye itself, and stops many substances including drugs from traveling across it. [2]

  6. Retinal vessel analysis - Wikipedia

    en.wikipedia.org/wiki/Retinal_vessel_analysis

    Retinal vessel dynamics have the potential to serve as a tool for the assessment of risks in other organs since they are thought to reflect the general status of the microvasculature (i.e. the smallest vessels in the human body). The value of the examination with the Retinal Vessel Analyzer has been documented in a number of recent studies.

  7. Intraretinal microvascular abnormalities - Wikipedia

    en.wikipedia.org/wiki/Intraretinal_Microvascular...

    Intraretinal microvascular abnormalities (IRMA) are abnormalities of the blood vessels that supply the retina of the eye, a sign of diabetic retinopathy. [1] IRMA can be difficult to distinguish from and is likely a precursor to retinal neovascularization. One way to distinguish IRMA from retinal neovascularization is to perform fluorescein ...

  8. Central serous chorioretinopathy - Wikipedia

    en.wikipedia.org/wiki/Central_serous_chorio...

    Recently, central serous chorioretinopathy has been understood to be part of the pachychoroid spectrum. [5] [6] In pachychoroid spectrum disorders, of which CSR represents stage II, the choroid, the highly vascularized layer below the retina, is thickened and congested with increased blood vessel diameter, especially in the deep choroid (the so-called Haller's layer).

  9. Central retinal artery - Wikipedia

    en.wikipedia.org/wiki/Central_retinal_artery

    The entire retina (with the exception of the fovea) becomes pale and swollen and opaque while the central fovea still appears reddish (this is because the choroid color shows through). This is the basis of the famous "Cherry red spot" seen on examination of the retina on funduscopy of a central retinal artery occlusion (CRAO).

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