Last year I got a himalayan cat at the pound. I'm not quite sure about her age, but judging by her teeth she is fairly young. Like all himalayans she used to have bright blue eyes, but yesterday i looked at them and they arenow bright green!!They changed color over night. I'm not talking about a light blueish green, they are bright spring green. Whats the deal with this? Is it a sign of a potential health problem? is it her diet? Or is just an age thing? Please give me some answers because i have never heard of this happening before. thank you.