The King had a genetic mutation which caused colour vision deficiency. He passed the mutation to his descendants.
Why can't we see the crystal blue waters anymore?
I think the tsunami led to a decrease in our genetic diversity. That's why all of us have CVD!
How could my son not stand up for the boy with colour blindness! I have to read him that story. Then, he will know about colour blindness and how serious it is.
The island's remoteness kept the gene pool small. The mutation spread through the whole population.
Why are those apples black?
Oh no! You have CVD too!
After 4 generations of the tsunami, Pingleap's population experienced symptoms of a recessive disorder known as Achromatopsia. The disorder causes light sensitivity, poor vision, and inability to distinguish between colours.
I didn't know apples were blue.
The sun is so bright today. I can't see.
To this day, 10% of Pingelap's population has CVD.
I wish I could see the beautiful island.
If only the King didn't have the mutation!
So next time, you meet a person with colour blindness, you'll remember how serious it is.