Originally Posted by timtak

I recommend tinted bicycle helmet visors. 30USD gets you a grey lens and a dual layer helmet. Another 15USD pays for three spare visors in clear, yellow, and rainbow.
https://www.aliexpress.com/item/3285...3a834e8dEdJhAo
I mainly use the yellow lens and bolt Trivex (virtually unbreakable) prescription lenses on the inside. The advantages is that they are less likely to get sweaty, or get lost, and they provide a wider range of vision. I can get low without looking out the top of my glasses. The anti-insect wire mesh is good in summer, and the visor keeps the cold air from my face in winter.

Visor Lenses by Timothy Takemoto, on
Flickr
When it is really sunny I can wear the darker tinted ones but find I rarely do.

The End of Goofy Glasses by Timothy Takemoto, on Flickr
These days the bolts are made of stainless steel.