The hexagons in this image are in the eye of a dragonfly ... These sections come from an area on the top of the dragonfly’s eye called the functional fovea, where the ommatidia are larger and almost ...

At the center of each eye lies a tiny region called the fovea – a densely packed area ... parts of the retina were involved ...

Illustration of the shared global anatomical relationships among the fovea, optic disc, and main blood vessels, in normal (a), diseased (b,c), and poorly conditioned (d) retina images. Credit ...