Botulinum Type A Toxin in the Treatment of Lateral Canthal Lines (Crow's Feet)

Inclusion Criteria: * Male or female patients, 18 to 65 years of age. * In the opinion of the Investigator moderate to severe lateral canthal lines (crow's feet) during maximum smile on both sides of the face. * In the opinion of the Investigator mild to severe lateral canthal lines (crow's feet) at rest on both sides of the face. Exclusion Criteria: * Any prior surgery affecting the orbicularis oculi muscle, prior blepharoplasty or brow lift, or any prior cosmetic procedures or scars that may interfere with the evaluation of the study results. * Previous insertion of any non-absorbable material in the periorbital region or facial treatment with augmentation material within 12 months prior to screening. * Any prior treatment with botulinum toxin (of any serotype). * Previous treatment with lasers for skin resurfacing or treatment with deep chemical peels within 12 months prior to screening. * Inability to substantially lessen the lateral canthal lines by physically spreading them apart. * Facial conditions that could affect safety or efficacy results such as: active infection or other skin problem in the periorbital area (e.g. acute acne lesions or ulcers); history of facial nerve palsy; marked facial asymmetry; ptosis; excessive dermatochalasis; deep dermal scarring; thick sebaceous skin; photodamage etc.