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Color blindness and surveying

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(@murphy)
Posts: 789
Prominent Member Registered
 

A kid I worked with was CB and couldn't see pink but couldn't miss blue.?ÿ As much as I hated maps that used color gradients to separate features, such as voting districts or counties, he loved them.

Color blindness affects men more than women.?ÿ Women, on average, see a wider spectrum of light and greater?ÿ variations within it.?ÿ Tetrachromacy is rare and seems to be present only in females.?ÿ Since many birds species have four color cones in their eyes, and the resulting difficulty seeing in low light conditions, I wonder if CB men notice the opposite.

Have any of you color blind fellows noticed that you can see better in low light than the average Joe?

?ÿ

?ÿ

 
Posted : 17/09/2021 10:29 am
(@dave-lindell)
Posts: 1683
 

I remember when I was a little kid and the subject of color blindness came up, my dad saying it was easy to distinguish traffic light colors: the green light is on top and the red light is on the bottom, with the orange in between.?ÿ

 
Posted : 17/09/2021 10:38 am
(@lmbrls)
Posts: 1066
Noble Member Registered
 

I had a Party Chief that could not find evidence of a boundary line.?ÿ I went to the site and took pictures of a well painted red line and came back to the office to dress him down. I was surprised by this as he was a very good Party Chief. After a few minutes, he blew up and let me know he was color blind. I called in his I-Man and showed him the pictures. so this would not be repeated. I felt a little bad about this. However, He should have let us know, so we could help him. We did some training with all the field crew member identifying property evidence, which helped in the long run.

 
Posted : 17/09/2021 11:50 am
(@ruel-del-castillo)
Posts: 266
Reputable Member Registered
 

Not color blind, but when I after had my cataract surgery, I could see ultra violet spectrum for a few days.

Very strange!

 
Posted : 21/09/2021 7:12 am
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