Whether a vampire's eyes change colour or not is dependent on the vampire overlay you use (the basic Maxis or custom default) and cannot be changed with a mod. I think you would have more luck with this request in the skintone or eye requests section. Mr Squinge does not do skintones (see #3 here).
what do you mean by whether a vampires eyes change color or not is dependent on the vampire overlay you use? and not to be rude but im not asking for a skintone im asking for a mod that when a sim turns into a vampire that their eyes do not change to the vampire eyes. thank you also to the reference of #3 of the rules but i read all of them before i posted this so i know already