If the blood is coming from the ceca I don't think cecal worms would cause that much blood, and I base that on a couple of necropsies I did where if found cecal worms, but no blood (I have pictures if you are interested). Twice I have seen blood like that in mine, one was a young pullet, the other was a turkey poult. The pullet had coccidiosis, the poult had blackhead (histomoniasis). Blackhead is rare in chickens, but it does happen.Do you think the worms could be the cause of blood or is there possibly another illness causing it?
When I see funny eyes I just assume it's ocular Marek's and if I can get clear enough pictures I email them to a UC Davis pathologist to see what he says.What do you think on his eyes?