Re: baby blood shot eye
That happened to my daughter last year. She just woke up like that one morning- it was so scary when I first saw her.
It's more than likely nothing at all. The eye tissue cannot readily absorb blood, so the slightest injury (coughing too hard, a slight bump, etc) will cause the blood to pool like that. It took a couple weeks for my daughter's eye to clear up completely.
But there is a very small chance it could be something else, so I would get it checked to be on the safe side.