Dd is 9 months nad yesterday her left eye was blood shot, well this morning thats gone but her right eye is now blood shot, and it has got a little worse throughout the day, what cuses it? she hasnt banged her head or fallen or been poked (as far as i can tell) im not really too worried, but it just looks abit sore, anyone got any ideas what may cause it and if it harmless or not? TIA xx