The objective of the study is to compare the time to onset of Dysport® versus Botox® in the treatment of lateral orbital rhytids ("crow's feet"). Thirty subjects were enrolled in the study; specifically 30 male or female patients 18 years or older with moderate to severe lateral orbital rhytids at maximum contracture. Each patient were randomized to be treated with Dysport® on one side and Botox® on the other side. Both the injector and patient were blinded to the injected toxin.