Comments on: Red-Green Color Blindness doesn’t mean You can’t Distinguish Red from Green

By: Lee Covert

Lee Covert — Wed, 28 Oct 2009 03:28:10 +0000

I have always had a problem with certain shades of red, green, and brown. Christmas red and green shades I can distingush, however when the two colors are together on a flat surface such as a sign they jump around appearing to be 3 dimensional, and drawing my eyes till they almost hurt. When I point it out to other people they think I’m crazy.

By: Matt Johnson

Matt Johnson — Thu, 13 Aug 2009 06:32:38 +0000

Daniel! Once again, thank you for your time and effort. This web-site is a great investment. For myself, I am red-green CVD. Fortunately, I now understand that the red-green title is incorrect. I can see virtually all reds, most pinks, and don’t have much trouble with browns.

On the other hand, I can see greens, but that is definately my weak point. And deciphering greens from browns can be a bit of a trouble spot for me.

I confuse greens from browns, not browns from greens. So almost each time I will get a brown right, but will mistake a green for a brown every so often. I deduced that that had something to do with my reds, the fact that I can see reds, and that red and green make brown. So, my green is weak.

Oh! Also, I am taking a Water Coloring class this fall semester, so I will test out the “Color Intuition” Theory. I am taking the course as a “Coping Strategy” for recognition of colors, especially subtle hues.

By: Daniel Flück

Daniel Flück — Wed, 16 Apr 2008 20:52:52 +0000

Melissa, this really depends on the state, country, authority, ... I personally believe, that the "dot" (Ishihara) test is to strong for many cases. If you can get passed a lantern test (three different colors displayed by a lantern) you should be able to complete most task on earth. But some people think, that you have to pass stronger tests to be a "secure" human being.

By: Melissa

Melissa — Tue, 15 Apr 2008 20:42:43 +0000

My husband is a truck driver and when he went for his physical they used the out-dated color blindness book, he distinguished about 50/ 50 of the numbers. The doctor approved him for 2 yrs on the dot, but put a stipulation in for him to see an opthomologist due to a red-green distinction prob. When he interviewed for his job, they sent him to another doctor, and they checked to see if he could distinguish colors such as on a color chart. He passed they mentioned they don’t use the books anymore? Which is right, for the dot physicals are they suppose to use the books or not???

By: Daniel Flück

Daniel Flück — Tue, 08 Apr 2008 21:21:46 +0000

Jennifer, just try out the following Color Arrangement Test. Comparing your answers to some of the others in the article or comment section will tell you more about your color blindness.