Can Botox or fillers help with eye asymmetry? (Photo)

Yes, this can be improved with a combination of Botox and/or fillers, thermage, lasers and ultherapy. I recommend getting a formal evaluation with a cosmetic dermatologist. Best, Dr. Emer

Hello, great question! Yes, I believe that Botox and fillers can help you bring back some symmetry to your face, I recommend scheduling a consultation with a board-certified injector to discover the best procedure(s) for you. 

Thanks for your question. By your picture, there's no doubt that you're young an beautiful. On things like this I really caution my patients about trying to do too much and ending up with a result that "doesn't look like me" or "isn't what I'm going for." 
It appears like you may have what's called ptosis on your left eye- without examining you I cannot conclude this but it's looking like that. It means that your eyelid isn't retracting all the way up like your right eye. This is far more complicated than just some botox, what generally happens is that if the left eyelid doesn't retract all the way- the left forehead pulls up the eyebrow to help get that lid out of the way. 
Correction is possible through surgery (if my diagnosis is accurate) but can have effects of the other eyelid as well as it's all connected. 
Try to identify and really pinpoint what you don't like in the asymmetry, if you want to level the brows, this can be done by someone with experience. 

God bless and good luck! 
Dr. Robb