Have you ever looked closely at the vampire eyes from EA? No? Well, take a look:
I disliked them from the beginning: there is a sharp line on the bottom part of the eyeball where the glow ends. On the top part of they eye, there is a fat black line, the eyes do not look properly centered...
I had to do something about that. So I made contacts especially for vampires!
You can find them under the category "costume makeup".
Please note: These contacts are especially made to accommodate the glowiness of vampire eyes. On normal sims, these look very very dark!