could be the result of combining PointAt at an independantly moving camera, eyes which are parented to the head, and positioning using poses and expressions. Don't know for sure.

But I do things slightly different and I never have this issue (any more) so my approach might be of some help: I introduce a new object (EyeTarget, a lowres ball will do), make it invisible for rendering etc, make the eyes PointAt it and parent it to the figures head as well. Now I get focused eyes, but not restricted to the camera. Figures look better when they look slightly aside the cam.

When I want the eyes focused on something nearby (in the hands near the body eg) I use separate Left/Right-eye targets, parented to the main one but slightly set aside a bit, to avoid cross-eyes.

 

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Usually I'm wrong. But to be effective and efficient, I don't need to be correct or accurate.

visit www.aRtBeeWeb.nl (works) or Missing Manuals (tutorials & reviews) - both need an update though