Right eye looks and feels different - is this ptosis? (photos)

Hello,
Ptosis is weakness of the muscles inside the eyelid which results in the eyelid margin itself drooping closer to the pupil. In looking at the pics, this appears to be more consistent with asymmetric dermatochalasis, which is redundant eyelid skin. A surgical upper eyelid blepharoplasty will likely be your best bet to address this.
Hope this helps!