Unilateral eyelid retraction or aging eyelid? (photos)

I had a bilateral blepharoplasty in 2015. Postop I did have several incidences of dehiscing with the OS re-suturing the incisions several times. I was concerned in the beginning since he left the sutures in x14days before removing them. I now have had one eye with eyelid retraction for past five months. I have gone to an ophthalmologist w/normal eye exam as well as had thyroid checked since I was diagnosed 3yrs ago with hypothyroidism. I remain on daily Armour. Is this normal aging?