Like any intervention to the human body, there are risks. Properly maintained and adjusted, contacts carry very few risks.

Anecdotally, I've yet to find a pair of glasses that lets me function in the world as well as contacts. (My eyesight is poor enough that I cannot see the screen on my phone with both eyes open, as it has to be so close to one eye that it is too far from the other.) Wearing contacts lets me see the entirety of my world, not just the portion within the frame of my glasses.