I have been wearing HA’s for 50 years, all different types. My opinion regarding eyeglasses with the instrument in the temples?
Don’t do it.
One reason is. If you are in need to remove your glasses, then you have no use of the aids. They will need to switched off and the ear piece removed from the ear before you remove your glasses. This will happen more that you can imagine. Doctor exams, cleaning, ect.
If you change glasses for tinted sunglasses or readers, no aids.
You limit your options.
Secondly. Damage. If you happen to bump your head or are hit. Any contact to the temples will crack the case enclosing the aids, then they will have to be sent in for repair. So then you have to have a replacement temple just to use your glasses, let alone the aid that is in the temple.
It’s much easier to get loaner BTE’s that loaner temples.
I wore the in the temple style for 5 years because at the time BTE aids were not powerful enough, and I went through many a repair situation.
In regards to glasses fitting between the aid’s and the head.
It should not be a problem. If the thicker plastic framed glasses makes things uncomfortable, then wire frames will be the way to go.
And also regarding wearing helmets. Be aware you may get feedback from the close fit. Best to take your helmet in to the HA fitter and have them help you on this issue.
Also some aids can have a program selection to be able to deal with the excessive road noise.
Again. See you HA professional.
Good luck.