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Colour blind doesn't mean someone sees in black and white. It means they have difficulty differentiating between two colours. Often red / green, but not always.
by foldor 2y ago
Colour blind doesn't mean someone sees in black and white. It means they have difficulty differentiating between two colours. Often red / green, but not always.
- bluGill 2y agoThat is most common, but a tiny minority see no colors.
- dmd 2y agoOne in 40,000. Being completely blind is VASTLY more common.
- MaxPengwing 2y agoSo that's still somewhere between 6600 to 11000 people in the US alone. Assuming a range of 1/300000 to 1/400000 out of 331 million US Citizens... So while rare, its not impossible to run in to.
- szszrk 2y agoThat just proves one struggles with a lot of not well thought out assignments, not with all of them. That still means a badly designed book. I grew up, as most of my friends, using a lot of xeroed exercise books and exercises notebooks. Monochrome copies, of course. Never saw anyone having issues with that, weather 7 or 19 years old. If a kid struggles with monochrome computer screen, it means his learning materials are designed worse than post-soviet era 25 year old textbook. BTW. I am eagerly waiting for better availability of eink monitors.
- exe34 2y agoalso, they're not the same colour to me in bright sunlight - one is light murky brown and the other is dark murky brown. under fluorescent lighting they are both the same shade of murky brown.
- f1shy 2y agoRed green does not mean that you ONLY have problem with those 2 colors. Means you will have problems with ANY color which is composed of some of the 2. Also there are Red/Blue Green/Blue... basically any combination. So relying in only colors is just bad design.