My dd did that. She had an eye tracking (ocular motor) problem that was fixed with vision therapy. However, I don't know for certain whether that problem was related to tracking or more of a language processing problem (which we're currently seeing a language therapist for).
I believe that Irlen Syndrome involves how the brain processes colors and is quite rare compared to tracking issues, though I honestly don't know any more than that.
Good luck with the vision appointment. I'd see someone from
www.covd.org .
