When my pit was younger, my fiancee was trying to get a hold of him and in the process poked his eye by accident and my pup ran face first into the side of my dresser hitting his other eye. His eye was obviously red, but I assumed it would go away because my other pit got poked in the eye by headbutting Jacobi's nail (not violently, just a simple they both jumped and came down at different times) and the redness went away. Well his eye always stayed slightly red in that corner of his eye. His other eye is kind of the same, but not as red. There's no apparent blindness or any irritation of the eye, but should I be worried?