I have the same issue with bisoprolol so take just 2.5mg of that but also 10mg of Ivabradine because this doesn't reduce blood pressure AND it lowers heart rate proportionally more when standing. My POTS is still quite bad but it's terrible without the Meds.
I do get eye related symptoms. Not taking medication I get like visual pulsing in time with heart beat. On ivabradine I get some visual side effects but this has calmed down (this is a bad interaction with ME light sensitivity as contrast seems to be increased). Either way I often feel pressure in my eyes, got it now.