My father became blind in one eye before they would consider him a priority for surgery on the other eye, that was years down the line so he gave up his driving licence, he died at 86 still with the cataract in his one working eye.
I too have inherited the glaucoma, I too only have vision in one eye due to botched surgery and 5 incidences of detached retina, I have to use 2 different eyedrops twice a day, it is entirely possible that I am more sensitive to bright lights or the contrast of them than other people, it certainly was not like this when I was young.
I recognise that people sometimes forget to dip their headlights and that when loaded they may be too high, a momentary flash from me is usually all it takes for them to display common courtesy and consideration, or at least it was until the advent of people abdicating their responsbilities as drivers, letting the vehicle systems do what they want, as long as they have better forward vision then its the problem of the oncoming driver being too sensitive or who should have there eyes operated on or stop driving, I suspect Felix is under 40, probably under 30.
I have an even worse problem with fellow runners and head torches, when I was a bacpacker there was a thing called fireside or camp etiquette, if there was no lighting in camp you would use your headtorch but on minimum setting (they were not bright anyway back then) and never look someone in the face, if you spoke with someone you would bot turn out your lamps.
In my old running club the local was in the brightly lit town square & our running routes were always on roads with street lamps, some idiots would come out of the locale into the brightly lit town square with high powered COB headtorches on maximum setting and look you straight in the eye, sme deal when out running, the worst were the ones worn around the chest, often you would see them lighting up the trees above but not the road in front.
I would constantly have to shield my eyes from the burning lights, most people got the message but some people were either too dim or too selfish, on two occasions I had to be driven home by someone else and on one occasion hospitalised for a burned retina, the light and the flare that it left on my vision was 100 times worse than the high powered slit lamp that the opthalmogists use and exposure to those are strictly controlled, go beyond a certain time and you cannot drive home, the opthalmogist said he would be struck off if he had burned someone retina like mine had been.
I can tell you that when you have lost one eye you take great care with the remaining one, being hospitalised through someone elses ignorance or selfishness and not knowing if you will regain your already compromised vision is not a happy experience.
It's 2 days now since my 20 hour journey of which less than 8 hours was in darkness and my eyes still havn't recovered and daytime driving is a challenge, if they dont improve by Monday I will have to go to les urgences ophtalmologique because I am due to do the return journey within a few days.
3 years ago I would get dazzled very infrequently and a quick flash of the headlights sufficed, now it is far far worse and I try to avoid night driving wherever I can, it is LED and Matrix headlights that have made the difference.