Quote - Not that it actually matters to many people, but when the limbus area is white, or a milky/light grayish color, it is called arcus conealis or arcus senilis. It is most frequent in older people. If one wants to simulate an aged eye, the color change between the pale color of the limbus area and the iris should not be sharp.

LMK

I know you're a doctor and I'm not, but are you sure? I thought arcus cornealis aka arcus senilis was a white ring in the outer edge of the cornea. Arcus cornealis means "arch in the cornea".

Whereas the limbus is the transitional structure between cornea and sclera, and that it is translucent white in everybody, gradually becoming completely clear where it ascends to become the cornea.

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Renderosity forum reply notifications are wonky. If I read a follow-up in a thread, but I don't myself reply, then notifications no longer happen AT ALL on that thread. So if I seem to be ignoring a question, that's why. (Updated September 23, 2019)