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I'm constantly getting checked out for macular degeneration myself; one reason I retired last year was blue /white headlights at night generally on single lane highways giving me instant headaches... https://blog.greenflag.com/2017/why-are-modern-cars-headlights-so-bright-we-explain-whats-causing-more-drivers-to-be-dazzled-at-night-and-how-to-prevent-it/

Are car headlights getting brighter? Ask around, and you’ll find it’s a common grumble among anyone that drives, especially those that frequently take to the road first thing in the morning or at night.
They’ll tell you that on an unlit road, especially one with crests or undulations, oncoming traffic can leave them feeling as if they can’t see.
During the winter months, the problem is exacerbated. Fewer daylight hours mean cars spend more time with their lights on. And the latest technology on modern cars has introduced superior lighting power to even the average family car.
While that’s great for any driver of a car with powerful lights, it’s not so safe for drivers of oncoming vehicles. They can find themselves blinded by the brilliant light from the latest systems.
Is there anything dazzled drivers can do? And will headlights continue to get brighter?

What’s the problem?

It’s a fact that car headlights are getting brighter. The motor industry is continually boasting about how it has improved lighting performance, to keep drivers safe. Meanwhile, eye specialists say the downside is that this actually impairs the vision of increasing numbers of drivers in oncoming traffic.
At the same time, as drivers age (69) the eye’s lens and cornea effectively become misty, and as bright light in shone through them, drivers suffer something called ‘disability glare’. Studies have shown it can take up to 10 seconds to recover from the phenomenon. Not good when carrying a Beretta .9mm
According to police data, accident investigators report ‘dazzling headlamps’ as an influence in 10 fatal crashes, nearly 70 serious accidents and more than 250 other accidents.