Relating to both the chorion (a layer of the eye) and the retina (the light-sensitive layer at the back of the eye).
Compound from 'chorion' (Greek for membrane) and 'retinal' (from Latin 'rete' meaning net). This anatomical term developed as doctors learned more about eye structure through microscopy.
The choroid layer is so packed with blood vessels that it has one of the richest blood supplies in your entire body—your eyes demand more oxygen per unit than almost any other organ!
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