How do I get rid of dilated pupils
As long as you don't have a medical condition that's causing your pupils to be dialated (eg, concussion, head injury, etc) then simply walking outside in sunshine will make them contract. If you sit in a dark room all day, they'll be more dilated to help you see and take in more light.
I agree with demika's comment about drugs! but if your pupils are just randomly dialted it could be genetic or due to hormone levels. Mine used to get really dilated and my sisters do it now so I think sometimes it is just natural and genetic. Cant change that!
Why would your pupils be dilated ? And there is no way you can get rid of it ,if you have some medical condition then go see an eye doctor. And not saying this is the case but if its because of drugs simply dont do them.