You can google PD and vision together and quite a bit will come up. Additionally, when we mentioned this to our neuro, he told us that PD causes problems with convergence and this pretty much describes it. I think vision problems in PD are much more common than most people think, and although everyone begins to experience vision loss after 40, they say, I think the PD affects the eyes as well, like our neuro said.

Glasses did not really help with this either, at least for us.