Dinosaur skull fossils on the size of the eyes, you could reflect the size of the eye. In general, larger eyes, the eyes the greater, accordingly, the better vision. In addition, the growth of the eye location is also good and bad eyesight impact, is located in front of the skull's eyes, their visual acuity better than in both sides of the skull, and that the more the distance between the eyes wide to the outside world more accurately differentiate the location of an object. Most plant-eating dinosaur had big eyes, which for them to early detection of distant predators in order to take effective defense strategy was very useful. Herbivorous dinosaurs in the eye's biggest devaluation ornithopod, because their skull show a big and round eyes. Ornithopod's superior vision, so that they have trouble case, all the way to discover a danger signal, and timely action is needed. Sauropod dinosaurs also has a great eye, good vision, coupled with their unusually long neck and head raised high, making the sauropod dinosaurs in a large number of dinosaur taxa, with the most wide field of view. Dragon Sword Dragon class and the class A relatively small eyes, their visual acuity worse than in the previous two types of dinosaurs some. This may be with their head low, long-term vision to live in a narrow environment. Most carnivorous dinosaur with a pair of big eyes, their sharp-eyed, vision Diocesan. Among them, particularly Deinonychus, bird-like dragon claw dragon and narrow vision, etc. the best. Their eyes is not only big, but separated by about a more open, location, front, with Big World, insight into the MSCRM three-dimensional vision. These agile predator with three-dimensional vision, be able to accurately see the distance of the prey, in order to quickly capture them.