Why does my one eye look bigger than the other? (photo)

I agree with my colleagues comments. My only additional comment would be that your left eye (right side of photo) appears to sit lower than the right. Facial asymmetry is common and typically nothing to be concerned about but, I agree, you should be evaluated in person and an oculoplastic surgeon is a good choice. Stephen Weber MD, FACS

The lower brow will make the eye look smaller. You do not appear to have a ptosis. Have you had this all your life? Your right eye may be slightly larger than your left, so you should be evaluated by an oculoplastic surgeon.

Good morning!looking at your photo, I agree that your right eye looks a bit larger. Part of your issue appears that your left brow is a bit more ptotic (droopy) than the right. You lid folds appear pretty symmetric.I would suggest a consult with a surgeon well versed in both lid and brow surgery to assess both to help improve your symmetry.I hope this helps