Hooded eyelid or ptosis? (Photo)

You could consider many of the things other doctors have suggested below, but one other thing to consider if you do not want to do surgery is to use Ultherapy. I would try Ultherapy focused only on the right side only to try to tighten the brow and forehead skin for a small lift. Results happen slowly over 3-6 months, but I have been impressed that we can get 2-3 mm of lift without cutting and no downtime! If you lift your forehead 2-3 mm and it fixes the way your eye looks, then I think you would be a good candidate for it. 

Differences in eyebrow height and contour from one side to the other are very common. This can be related to eyelid ptosis, but most commonly is just reflective of normal variations in anatomy. Surgery (upper eyelid blepharoplasty) can be very useful for the hooding while botox injection is an excellent tool to improve brow symmetry and contour (see the link below)