Lets say someone is using enter image, could they in such a case that a caster is using glasses that allow someone to scry an area, it would create an image of the character on the glasses. So could you be able to detect, and enter the image of you that is in the glasses, basically reverse scrying on that person, and maybe influencing the image that he's seeing since you can do things within the area of the frames.
Bump for a hopeful answer!