The crow’s feet are lines that converge at the outer corners of the eyes and are present when you smile. They are due to the action of the orbicularis oculi muscle, which is a large muscle that surrounds the eye and brow area. If you notice, when you smile forcefully in the mirror, the crow’s feet actually pull the outer aspect of the eyebrow downwards, so treating the crow’s feet actually gives a modest “chemical brow lift” to the outer aspect of the brow, which many people find to be a good look.
My treatment for this group of muscles is a neuromodulator (such as Botox, Dysport, Jeuveau, or Xeomin). Typical treatments are 20 Units. Treatment of this area has the effect of relaxing the crow’s feet at rest and when smiling, and also raising the lateral, or “outer” brow (the opposite of the effect of the muscles contracting).
Neuromodulator treatments in the office take 15 minutes (most of which is spent talking about the treatment and expectations), and the effects are seen as early as 2 days, and by 2 weeks, all of the effects have taken place. The duration of treatment typically ranges from 3-6 months, depending on the individual patient and dose used.