Many times a stroke can cause damage to a part of the brain that is responsible for carrying parts of the visual pathways for a certain part of the visual field, such that when this is damaged, a part of the person's visual field is damaged. It sounds like this is the case with your daughter. Many times this damage can improve and some of this peripheral vision can come back but it doesn't always come back and it may not come back at all, unfortunately--only time will tell this.
As far as her double vision goes, I would suggest that she obtain a patch (like a pirate patch) to occlude the vision in her left eye so she is not seeing double constantly. That may at least allow her to function better.
That may also provide her some relief from her eyes jumping and making it difficult to focus on things. Unfortunately, however, it sounds as though the right eye is not moving as it should because one of the nerves that controls one or more of the muscles that move the eye has undergone some damage from the stroke, and therefore her eyes are misaligned. This also tends to improve somewhat after the stroke, but to what extent and how quickly is very individual. In the coming weeks these symptoms should start to improve slowly to the extent that they are destined to.
Unfortunately there aren't really any eye exercises that will allow her to regain function of the eye muscles; whatever healing that is going to happen after the stroke will just have to patiently awaited. But I do think the pirate patch will at least help with the vision jumping and seeing double.
Does that help to address your concerns?
I am happy to continue to answer any more questions you have until we have resolved your concern.
Also, any positive feedback and/or bonus you may feel prompted to provide would be welcomed and is appreciated.
My opinion is solely informative and does not constitute a formal medical opinion or recommendation. For a formal medical opinion and/or recommendation you must be examined by your doctor.