[I had to trim the crests of two silkies and two Polish, a hen and a rooster of each. Their personalities blossomed because they could SEE!
Sadly, the Polish rooster suffered feather picking of his crest when his sight was obscured, had to be brought inside three times and put back out when he recovered. Then it happened again, so I just made him a House Rooster. He had been pecked pretty badly, so he WAS "simple" and he died when he was about a year old.
So, yes, trim the feathers away from her eyes. She will find food more easily as well as be able to see the other chickens around her, so she might feel less fearful.