Well, If she can close her eyes and see anything at all, even if it’s something that she just physically saw- it’s unlikely aphantasia imop. I think @Mei is the other female member who also has this condition, so it might be worth checking with her to be sure.
As far as magic goes, I personally let go of the need to see anything, when working with spirits when I first started doing things intentionally. I couldn’t understand how I could see spirits of the dead, get visual impressions of the Loa and yet demons, angels and most gods, I was unable to see or experience much more than feeling things around me changed when I called.
I’ve tried all sorts of things, like the MagicEye 3D puzzles and other things designed to stimulate visual imagination within those who cannot visualize and I’ve not gotten any results as far as being able to visualize go, however it did help with being able to see auras, with way less effort/intention of doing so.
As far as being able to work with spirits and magic, like I said, I just pretty much worked on the basis of it was a one way call, until it wasn’t. I still do in fact if I don’t have time for a full evocation- Just because I can’t hear or see them, doesn’t mean they don’t hear and see me. I usually get some sort of sign in these cases that they did show up, be it weird flashing visual phenomenon or the room around me changed in temperature or something brushed against me, when I’m locked in a room without anyone or any pets.
I learned that not being able to see my imaginative scenes doesn’t mean I can’t feel them, hear them, imagine textures etc. Here is a link to where I’ve talked about how I have worked around the issues and still managed to make magic work, even though it’s not designed to work for someone like me: