Generally used for cosmetic enhancements, wrinkle ridding and anti-aging, Botox maybe used for medical purposes as well. Recent studies show that Botox may be used for alleviating eye muscle spasms.
Botox has been said to benefit relieving migraines, however widespread use for migraines has not been implemented yet.
"The FDA has confirmed that diluted Botox can strengthen weak muscle spasms, which are the source of involuntary eye twitches. When Botox is injected to the eye muscles, the chemical relaxes the muscle. This decreases tension and prevents it from involuntarily moving."
Much like basic upkeep with using Botox to get rid of wrinkles and aging lines, to maintain this benefit, injections every few months are necessary.