What are four differences between the anatomy of a sheep eye and a human eye?

This is what i have so far, what is the last one? Thank you! There are four main differences between a sheep’s eye and a human eye. These differences are: a.A sheep’s eye has four muscles used to move the eye only up, down, right, and left, while a human eye has six muscles allowing it to roll. b.The sheep’s eye has an oval shape pupil while the human eye has round one c.Sheep’s have a shiny retina that reflects light, humans do not d. Please answer this quickly!! Thanks in advance!