Hello guys, im 21 yr old male. I recently noticed that my left upper eyelid is opening more than the right one. I wasnt born like this, this happened to me like 3 weeks ago and it took me a while to notice whats different between the 2 eyes. I searched the internet and found about eyelid retraction but I dont think its my case because my eyelid opens slightly more than the right one and the white above the pupil doesnt appear. Any ideas what could this be.. Note that I dont have any vision disorders and my eyes dont hurt.. Thanks.