I would do a cleaning on the eyes. Just when you think they are good you will wake up to heartache. A little warm water doesn't hurt. And from your pictures I can see that the feathers are matted around the eye and that could be making the whole area stiff.
I have had the closed eye problem before. I used warm water and a Q-tip swab and gently wipe the warm water on the eyes to clean off the sticky stuff from hatching. You must get the eyes to open before you put it in the brooder with other chicks. Eyes closed = can't find the water dish and...