Crow’s feet around the eyes typically need 12 to 24 units total

https://www.scribd.com/document/1008910624/Botox-Masseter-Treatment-Clenching-Relief-and-Facial-Slimming-127152

Crow’s feet around the eyes typically need 12 to 24 units total, placed superficially with precision to reduce lateral crinkling while maintaining a genuine, lively smile.