I've also had vision problems associated with PCS, mostly double vision and light sensitivity. I went to a NeuroOpthamologist who did vision tests and only came up with some data showing dry eye and gave me a regimen to follow to address that. But she did a BAEP Test (google it) and found that my mid-brain associated with Vision, amongst other things, was indeed not firing correctly. It may be something to look into as now I am in Vision therapy with an OT who is trained in this area. She works on retraining my brain how to see correctly. I've noticed huge results which has been amazing! I think it would be worth looking into. I also have been seeing a CranioSacral therapist and have been getting tremendous results with her as well.

Good luck and I hope this helps!