One eye is much smaller than the other eye. Any suggestions? (photos)

What is clear is that the eyebrows are being held very high.  That suggests that the right upper eyelid retraction evident in the right upper eyelid may be due to latent ptosis in the left upper eyelid.  This can be assessed during a detailed oculoplastic consultation.  You indicate that the lower eyelids are compromised but that is not seen in the lower eyelids in the photo you provided.  Ultimately help starts with a detailed consultation with a surgeon who specializes in aesthetic eyelid reconstruction.

Thank you for the question and including your photo. It is difficult to determine from your photo what the issue is. Your right upper eyelid could be retracted or your left upper lid could be droopy (ptotic). Make an appointment with an oculoplastic surgeon for comprehensive evaluation and possible treatment plan. Good luck.

It appears that you have some right upper lid retraction, however, photos in up, straight ahead and down gaze would be helpful. The dynamics of the lids are very important and would suggest you see your local oculoplastic surgeon for best answer and correction.