hiya
I wear contacts/glasses and currently not having night vision issues although it's something I've thought about before. I dont like uneccesary 'glare', too much and it's annoying and then results in me getting a headache from squinting all the time.
I just wanted to add maybe those Yellow night driving glasses may help you guys with difficulties?
I know you'll look like a Bono reject wearin em, but hey, if it helps you in the dark then all the better right? Night time glare is problematic, badly adjusted oncoming headlamps, flickering road lighting, dimness, rain etc all take a toll so these things are meant to help
Currently other tricks I use are to set my rear view mirror to just how I want it, and then flip it to night mode and keep it there, even during the day (cuts glare and makes me look just that little harder) - Window tints help, but obviously not 'limo black' and this may be a hindrance if someone already has night vision problems. I also keep my sunshade visors down all the time (cuts glare) - I vary these things from time to time, I've currently broken my favourite shades.
I guess some of you may know a little more on good vitamins and the various eye excercises you should do to help - I only remember vaguely reading things like this.
Hope this helps
DtM! West London & Slough UK!