Pupils always dilated

Hi, I'm wondering if any one could tell me why my pupils are always dilated? I don't take drugs (prescription or otherwise) or smoke cigarettes. I do drink every now and then, but socially and moderately. I dont have any illnesses or diseases that I know about and consider myself pretty healthy. I don't wear glasses, my vision is fine and I dont find bright lights annoying. Note this dilation occurs in both eyes simultaneously. I'm bringing this up because many people ask if I take drugs (including employers!) and I sometimes don't get let into social events because I look like I'm on a buzz. Anyone got any suggestions?

[Ray T Oyakawa, MD]

Normal variant.  You can get drugs to constrict the pupil.

Dr. O.