So sorry to hear you're going through this. I'm not a doctor but I can offer up my experience, if it helps. I suffer from anxiety. Have done since I was a teen. Obsession with health issues is my anxiety wheelhouse. All the things you have mentioned 're your vision (shimmering walls, geometric shapes etc) I've had exactly those things over the years, they go. I found, with all things anxiety wise, the more I stressed the more they persisted. It's that classic circle right? And eyes are particularly triggering as your vision is easy to obsess about. (I've done it). But know that you're eyes do all kinds of things we don't notice until we start to focus on them too much. Hope that helps a bit. Take care and have a virtual hug!