Hey all, my duo buddy and I saw some comments a few days ago about visors and how some reflect light, others don't etc. So we jumped into a shoreline raid and tested them out. They're all taken approximately 50m apart and during the rain + fog.
TL;DR: 6b34, AFGlass, M Frame, Proximity and Tglass all DO NOT shine or reflect light at a greater distance.
The remaining visors do; Crossbow, RayBench, Dundukk, Gascan, Aviator, RGlass (RGlass being the worst offender by FAR).
Also the Slender mask covers your eyes like a visor, providing some 'weather protection' with no shine.
One other thing I noticed is that while all the glasses reduce 'the size and frequency of rain droplets' as per the wiki, all the glasses with a nose bridge (that is, traditional 'glasses' vs a single-piece 'visor') were slightly worse for this purpose.. Might've just been a timing/angle/placebo thing and I can't verify without spending a bunch of time in offline raids, maybe some at a later date.