These awesome cats all share the same genetic mutation that give them their beguiling multi-colored irises. It’s called Heterochromia, specifically sectoral heterochromia, which causes part of one or both irises to be a different color from the rest. While 30-40% of cats born with heterochromia may suffer from deafness in one ear, the condition does not affect their vision. However we wouldn’t rule out the possibility that they have hypnotic powers.