I have done some research on the tmj side of things:
in brief, in cases there may be an underlying physical condition like temporomandibular joint dysfunction (eg. due to stuff constantly affecting teeth/bite/jaw position, maybe inconsistent mouthguard use (which may or may not be compounded by teeth grinding, or perhaps cause teeth grinding?)?) affecting the face/eyes:
https://pdfs.semanticscholar.org/4b12/c46c8b9c5681cefa48b47543f744a5f72d75.pdf
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5045971/
"the study, based mostly on peer-reviewed specialist articles..has determined that..dental occlusion/tmj status...exerts an influence on..gaze stability" many other studies also link tmj and gaze stability (eg PMID: 20922171)
I also had symptoms like a resistance, stuck, or jumpy feeling when moving eyes and droopy eyelids (which was asymmetric in my case- slightly blurrier eye got droopy which suggests this interacts with vision, also suggested by study below; call this the 'tmj headache'; neuro/ophthalmology problems were ruled out by physicians) including in social settings.
Another study: "nervous systems and functional pathways strictly connect vision and dental occlusion"- this may explain why my 'tmj headache' was altered by cyl+sph glasses turning into a headache in the jaw.
My symptom onset coincided (with a few months delay) with me switching to wearing orthodontic retainers (invisalign mouthguard that changes jaw position/bite) every other night (switching from every night). I have currently gone back to wearing them every night and may consider using them only occasionally in future (although the orthodontist said maybe not if you're grinding teeth but again not sure if my teeth grinding started because of inconsistent mouthguard use (where mouthguard would be the cause, and would persuade me to change frequency to every night/more or go off them for occasional use) or was independent).