Botulinum toxin, more commonly known as Botox, is a neurotoxin that's most ... a crooked smile) Eyelid ptosis (drooping eyelid) Eyebrow ptosis (crooked or drooping eyebrow) While you can't ...

Sometimes ptosis develops due to a neurological ... the drooping eyelids occur when the Botox migrates downwards, due to gravity, weakening the function of the eyelid muscles.