Treatment of crow's feet wrinkles with Botox
Paw wrinkles appear on the outside of the eyes. The appearance of these wrinkles is favored by contraction of the orbicularis oculi muscle and thinning of the skin. Crow's-feet wrinkles are expression wrinkles, so they can appear very early in life.
Botulinum toxin injection:
3 injection points of botulinum toxin are required to smooth the peri-ocular skin.
The 3 injection points are represented by the yellow dots.
ANATOMY
ORBICULARIS MUSCLE
Thin, flattened muscle. It consists of three parts:
-The palpebral part is divided into three fascicles: a marginal fascicle (Riolan's ciliary muscle), a pre-tarsal fascicle, and a pre-septal fascicle.
-The orbital part is integrated into the muscular mask, forming a ring.
-The lacrimal part, or Horner's muscle, in the medial part of the orbit. Some authors identify a bundle of muscle fibers at the superomedial level of the orbicularis oculi, which they call the depressor supracilii.
Its contraction is responsible for the appearance of radial wrinkles centered on the orbit, internal glabellar wrinkles, vertical mid-orbital wrinkles and lateral crow's feet wrinkles.