I hadn't specifically thought that here eyesight-replacing magic was going to be later replaced by The Sight, but the plans are to have the character ultimately develop the full Wizard package.
For the eyesight-replacement I was thinking describing it as the latent magic supercharging her senses of touch and hearing enough to let her build a three-dimensional image of her immediate surroundings from non-visual senses, so no capacity to notice colors, only very limited ability to notice textures without touching and rapidly getting "fuzzier" at any distance more than 20 feet or so, but on the other hand more aware of what's behind her than others and sometimes able to notice things just around bends.
When she eventually develops (or rather discovers in-character) The Sight I was thinking letting it practically give her actual eyesight along with it, to make it all the more enticing to use. ("I can see colors, for God's sake!")
As for Soulgazes, my idea was for her to simply not be able to initiate a soulgaze before figuring out a way to use another sense. It could be an interesting thing that her nature as wizard (once it's fully realized) will make anyone locking eyes with her trigger a Gaze, but she can't actually willingly make it happen herself. Only later, after studying, she figures out a way to use touch - maybe touching someone else's eyes, or maybe "third eye" could trigger it.
The Soulgaze bit I'm not entirely sure of though, so I'd love input on that!