A lingering visual image or impression that remains in one's vision after looking at something, similar to an afterimage.
From 'after' plus 'eye' (from Old English eage). Rare or archaic term used in poetry and older texts describing visual phenomena.
An aftereye is what happens when you stare at the sun and see that dark spot floating—your retina is literally burned into short-term memory, a temporary scar on your vision.
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