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Figure 3. A: Botulinum toxin injection for lateral brow lift and pretarsal orbicularis injection to widen the palpebral fissure. Volumes referenced are independent of neurotoxin variety and assume dilution as specified in the body of the text (i.e., 1 mL saline per 100 unit vial of Botox® or Xeomin® and 3 mL per vial of Dysport); B: proper technique and position for the pretarsal orbicularis injection. While these figures offer a guide, dosing may vary between patients according to their musculature and anatomy