I'm aware that the pupils constantly shift in accordance with changing light levels at any one point as you move around or as light levels change, but what would cause pupils that continue to dilate and contract over and over in constant light? For example, in a bathroom with overhead lighting looking directly into a mirror with no movement of the head, no shifting of the eyes to look elsewhere, and nothing moving in the periphery or background? My pupils will contract, then dilate, then repeat, they're not going from max to minimum to max, sometimes it may dilate to point A and contract to point Z and then dilate to poinc C and contract to point Y.