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[migraine] peripheral vision nonsense
The thing about buying new glasses, right, is that I've been feeling avoidant about it in part because I think I was slightly migrainey the day I had the most recent test done and I was already pretty sure that my vision goes... wrong... when migrainey -- most noticeable when moving, but always... there.
Slightly more specifically: it's neither scintillating scotoma nor loss-of-whole-field-of-vision nor any of the other very classic visual auras; instead it's a sense that I'm not managing to track movement properly along the lower edge and especially the lower corners of my field of vision.
... which matches up really well, actually, with the peripheral vision deficiencies that, er, showed up during my last eye test.
I've been noticing the Weirdness on-and-off for quite some time now, and was dithering back and forth about whether it was just confirmation bias in that I was only noticing it when otherwise migrainey -- but then on Monday, while on my way to my GP surgery to pick up some paperwork, it resulted in the railings I was going past (and that I go past regularly!) causing an extremely pronounced and unmistakeable strobing effect. I am very confident that that is not something I would somehow manage to confirmation bias myself out of noticing most of the time, so, hurrah, Definitely A Migraine Symptom (for lo, on Monday I was migrainey) it is.
The thing that is mildly baffling me is that I can't actually find (admittedly on a fairly cursory search) any description of specifically peripheral vision fuckery as a migraine thing! Lots of mentions of tunnel vision, lots of mentions of classic aura, and one case study in which "peripheral vision" is used metaphorically. So, you know, let the record show, &c.