Light pollution destroys the beauty of the moonless night sky.
No need for scientists to figure that one out. 
The Captain
A friend, an artist, inspired by Monet, says Monetâs painting is so indistinct due to Monet being near sighted.
ralph
Ralph,
I like that and it may in part be very true.
Monet was playing with new techniques to capture light but not shape so much.
The pollution was an event at that time. But that was not why the paintings were that way for the most part.
Indeed. When painters moved out of the studio the lighting became much more variable. Try painting the light reflecting off a stream or ocean without becoming âhazyâ. The same with clouds scudding across the sky. The techniques learned spread. Then came the Fauves with pure brilliant (but unnatural) color. I donât think pollution was less by the turn of the century.
DB2
Interesting. One of the things that recently convinced me to get cataract surgery was that my night vision (which had been pretty good) started to look more and more like a Van Gogh painting, especially lights. I wondered if Van Gogh, who has always been one of my favorites, had bad cataracts.
The surgery was great and now can drive without glasses. And Iâm still amazed by the colors; I forgot how blue the sky is and how white white is! Although to be fair, my lawn, which looked like a lush greenish carpet before surgery, now looks like crap. 
My grandmother around age 95 goes into the nursing home. In the first year she has cataract surgery. Mom goes into to visit her the next morning. She is wearing the visor. Mom askes how her morning is going?
Grandma, âI have good news and bad newsâ.
Mom sinking, âtell me the good newsâ.
Grandma, âI can see colors, the room is bright, I feel great about itâ.
Mom, âthe bad newsâ?
Grandma, âI went in the bathroom and looked at myself in the mirror. I am an old hagâ.