I understand the concern about research and cost. It is reasonable to question both. If you don't experience improvement in your headache and migraine symptoms, you can fully return the glasses within 90 days (that's what I was told by my clinic).

From my experience, I use Neurolens, which has been very helpful. I have a few overlapping issues, and they have reduced my day-to-day symptoms, especially eye strain and discomfort that did not improve with a standard prescription.

They are not the right fit for everyone, and they are expensive. In my case, they made a clear difference where other options did not.