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Re: Synopsis from NTSB
Author: blacknwhite
Date: 06-20-2013 - 13:02
Mark Wrote:
>
> My opthamologist gave me a colored brochure
> showing what people with various forms of color
> blindness actually see.
>
>
Something else to note about colorblindness/color-deficiency as it relates to railroads, is that the "spectrum" of color-blindness can be so broad, and dependent on what the color-source is, i.e., a solid painted plate vs. a colored light.
I'll fail portions of the Ishihara Dot Test every time, and sometimes have trouble distinguishing paint shades and other everyday things, but run a colorblindness test using relatively bright colored lights... like railroad signals... and I pass easily.
>
> My opthamologist gave me a colored brochure
> showing what people with various forms of color
> blindness actually see.
>
>
Something else to note about colorblindness/color-deficiency as it relates to railroads, is that the "spectrum" of color-blindness can be so broad, and dependent on what the color-source is, i.e., a solid painted plate vs. a colored light.
I'll fail portions of the Ishihara Dot Test every time, and sometimes have trouble distinguishing paint shades and other everyday things, but run a colorblindness test using relatively bright colored lights... like railroad signals... and I pass easily.
