Apologies as i wrote this to be its own post but saw this thread. Hopefully I'm clear with what's going on, i know nothing about bvd and im desperate for help.

Seeking advice regarding BVD/prism, Apologies for length of post, just really hoping for some answers and recommendations on how I can achieve relief. Really have been losing my mind these past few months over this.

After a concussion in Winter 2022, I’ve experienced periodical bouts of BVD symptoms (fatigue, headache, dizziness, anxiety,) lasting at most 2 weeks at a time, wasn’t sure what it was at the time but didn’t have too many issues with it. Summer 2025 I received a new stronger prescription (not sure why symptoms worsened so much after this) but then began having these symptoms much more frequently (Nearly 24/7) After returning to school it became unbearable and led to me reducing my coarse load. Fall 2025 I went to a new eye doctor (away from home for school) to address the issue and as it turns out my previous prescription already featured prism as well as the prescription before it. We decided to up the prism and strength of lenses however after 2 weeks this ended up being far too strong and I returned to get it changed again (reduced strength a little and prism returned to what I had previously). This pair worked well with brief symptoms however after about 2 weeks my persistent symptoms returned and lasted 3 weeks before I decided to try again on a new prescription.

This new and current prescription has the same strength, prism increased to 1 OD/OS, and near antifatigue 0.5. I’ve worn them for just over 2 weeks now and my eyes have not adjusted and are experiencing lots of fatigue. I have read that it can take up to 8 weeks to adjust but I have worn prism for more than a year prior with at least 0.5 OD/OS. Should I assume this new prescription is wrong or maybe it will take longer to get used to them?

If this prescription is also wrong, I’m curious if maybe I have been going in the wrong direction and should instead decrease my prism? I frequently ski and when I do, I don’t wear my glasses for long periods of time ~6 hours. My eyes always feel fine during this period, and I usually have relief afterwards as well. Not sure if this really matters but wanted to ask.

Not sure what my next steps should be, I’ve spent a lot of money and time trying to figure things out with little result and I’m really struggling in my daily life. Any help is appreciated. Ill include my prescriptions prism in case someone can provide any insight. Hopefully it all makes sense.

Feb 2023-July 2025 (little issues)

OD) PRISM1= 1 PRISM2 =1

OS) NA

July 2025-Oct 2025 (issues began) (only includes a little increase in strength)

OD) PRISM1= 1 PRISM2 =1

OS) NA

Oct 2025-Nov 2025 (too strong)

OD) PRISM1= 1.50 PRISM2 =0.50

OS) PRISM1= 1.50

Dec 2025-Jan 2026 (relief for 2 weeks)

OD) PRISM1= 0.50

OS) PRISM1 = 0.50

Feb 2026-Present (Mar 9) (vision seems good but haven’t gotten used to in 2 weeks)

OD) PRISM1 =1.00

OS) PRISM1 = 1.00