They may look a mess but it won't kill them. I'd trim off any really broken flower stems but otherwise leave them alone and let them recover. Cutting photosynthesising green foliage off, even if shredded, would be counter productive.

Ow, that hurts!

Splint up the broken flower stems with chopsticks or something and wait a couple of weeks. Then trim off the dead parts of the plant and let them keep as much live material as possible. They need the leaves top make food to store in the rhizomes

there is an iris forum .... lots of great experts there ... if you want to double check us... i usually dont hang there.. because of pix envy .. i want them all ....

but flora is spot on ... even damaged leaves.. photosynthesize.. to store energy in the rhiz, for next year ... so leave them be.. until the usual time to cut them back ...

ma nature damaged them enough.. no piling on ... lol ...

ken