ADDERALL XR and Vision | ADHD Information

I am on my second round of 30 pills of ADDERALL XR, but have upped the
dose to 20mg. Before this, I was on 15 and only had those 30. There were
two weeks between. I am noticing poor vision up close. Far vision is still
20/20. Is there a connection, or is this a coincidence of being 43. my
blood pressure was fine when I started.I have noticed visual disturbances as well..usually later in the day ..sometimes it has to do with light...but I think it definatley has to do with the adderall...I think it has to do with my eyes getting dried out..