I don't think it matters that much and it may even help as it throws into focus the unusual color of this cat's eyes.
This is a straight photograph. There is no post-editing of any kind as far as I am aware to enhance the colors. I added the pictures of the uncut emerald stone as reference and lightened the picture a fraction.
|Grey cat emerald eyes. Photo Nottingham Vet School on Flickr|
There it is; the cat with the emerald eyes. I'd like to know more about this cat because the eyes look a little unnatural if I am honest.