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> Driving a small car at night is so difficult for me these days, especially as a person who wears glasses. Self-defense Step #1: avert your eyes from the bad
by teslabox 7y ago
> Driving a small car at night is so difficult for me these days, especially as a person who wears glasses.
Self-defense Step #1: avert your eyes from the bad headlights. One of the problems is our eyes have a natural tendency to look at things which are blue at night, on account of our eyes' hyper-sensitivity to blue light.
It was sort of happy accident that early incandescent bulbs were low-blue sources of light that put out vastly more of the safe portion of the spectrum (infrared, red, orange, yellow).
Self-defense Step #2: screen out excess blue light. I wear polarized yellowish fit-over glasses at night. They help a lot. I found my current preferred pair at a clearance apparel/home goods store for $8. My backup glasses are yellow safety goggles -- these turn the bad headlights greener than the polarized goggles, but I've tended to use the polarized ones since I found them. You can spend more on "swannies" [0] or whatever, but I'm happy with my $8-$11 yellow glasses.
This was inspired by a HN comment, who told about wearing orange glasses to walk his dog: https://news.ycombinator.com/item?id=14170975 https://news.ycombinator.com/item?id=14170975 My first set of orange safety glasses cut out too much light -- great for dealing with headlights, not so great for noticing pedestrians.
[0] https://www.swanwicksleep.com/ https://www.swanwicksleep.com/
- timw4mail 7y agoThe problem with those kinds of glasses is that they still reduce the amount of light. If someone doesn't have their headlights on, you are much less likely to see them with the blue-light filter glasses.