You (or someone else) asked for enlightenment about "wtheether the actualperception is a conic section?" (sorry - line very bad)
Well, unfortunately the answer is that it's all rather meaningless. This question seems to presuppose that "standard" identification of the visual field with a portion of a Euclidean plane. THERE ISN'T ONE.
Those capitals were accidental, but it seems reasonable to leave them in.