Re: Seeking education here...
I wear glasses all the time in VR (Steam Index). I'm 67 and have astigmatism, different prescriptions in each eye and the usual age-related long-sightedness. I normally wear varifocals but find them a bit strange in VR. What I did was to get my optician to make up a pair of glasses with my vanilla prescription without any sort of magnification for reading, VDUs, etc.. To keep the cost down, I just got two new lenses in an old frame.
The glasses work fine, the picture is clear except at the edges where the frames can be seen (vaguely). The frames fit in the Index with no problem. Prior to the Index, I had a HTC Vive Pro which was also OK, in fact, it had more room than the Index.
Summary: glasses are OK as long as the frames are not to large.
Phil.