Study Status: Completed
Recruit Status: Unknown status
Study Type: Interventional
Official Title: Effect on Tear Functions of Pretarsal and Preseptal Techniques of Botulinum Toxin Type A Injection in Hemifacial Spasm
Brief Summary: The purpose of this study is to determine whether pretarsal and preseptal techniques of Botulinum toxin type A injection have any effect on tear functions.