Crow’s feet lines and wrinkles are primarily caused by contraction of the orbicularis oculi muscle, but the amount of skin damage and laxity plays a role as well. The best treatment, therefore, should be aimed at treating the cause of these lines. Botox and Dysport relax the orbicularis muscle and reduce its contraction, thereby reducing the wrinkling of the overlying skin. Prolonged reduction of muscle contractions will therefore reduce the number of visible wrinkles in the overlying skin, and the crow’s feet will improve.
Soft tissue fillers may be used to fill lines and wrinkles. However, in the crow’s feet area, they do nothing to reduce the underlying muscle contraction and therefore the major cause of these lines and wrinkles remains untreated. Fillers may provide an improved appearance at rest, but once the orbicularis muscle contracts all those crow’s feet lines will be immediately visible. In contrast, Botox and Dysport will reduce both dynamic and resting crow’s feet lines.
Radiesse is composed of calcium-phosphate microspheres suspended in a gel. It is white in color and has a pastier consistency than the hyaluronic acid gel fillers. Radiesse is generally meant to be used in the subdermal plane or deeper in the subcutaneous tissues. If used superficially within the skin, or beneath very thin skin (like the eyelids and periorbital region), Radiesse may be visible and/or appear irregular or lumpy. Radiesse is very good for midface volume restoration and contouring, where it is placed deeply in the subcutaneous tissues and over the bone.
Botox or Dysport should be the primary treatment for crow’s feet lines and wrinkles. If soft tissue fillers are to be used in the lower eyelid and crow’s feet then Juvederm and Restylane would be better options. Meticulous placement is performed with a very fine needle, and should be done by an experienced injector.