Infographic: Envisioning Macrophages
Infographic: Envisioning Macrophages

Infographic: Envisioning Macrophages

Researchers find different distributions of the immune cells in young, older, and diseased eyes.

Ashley Yeager

Ashley started at The Scientist in 2018. Before joining the staff, she worked as a freelance editor and writer, a writer at the Simons Foundation, and a web producer at...

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Mar 1, 2021

Imaging a healthy eye reveals that macrophages line the inner surface of the retina. They are sparse near the fovea and more densely packed farther from it, similar to nerve fiber bundles (not pictured) in the inner retina. Humans lose roughly two percent of these cells each year. As certain eye diseases progress, macrophages move to damaged areas, including near the fovea, and play a role in disease processes. One disease where this occurs is glaucoma, where drainage canals get blocked, increasing pressure and damaging the optic nerve.


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