Can wrinkles around the eyes be solved with Botox?

I've been increasingly concerned about the deep crow's feet that appear around my eyes every time I smile. I know Botox can help, but I'm also worried that my natural smile will become stiff or awkward.

For those who have actually had Botox around the eyes, it would be helpful if you could tell us your honest experience about the effects on wrinkles around the eyes, side effects, and how long it lasted.