How is dinosaur visual sense?

Dinosaur eyesight was generally superior to that of most other reptiles; however it varied between dinosaur species. Large carnosaurs, for example, have weak binocular eyesight, equivalent to that of current alligators. Allosauroids, such as Carcharodontosaurus and Allosaurus, lacked binocular eyesight equivalent to contemporary crocodiles. They had binocular eyesight that was limited to a 20° broad zone, which is logical given that they hunted predominantly huge and sluggish prey. Their strongest sense was most likely scent.

Binocular eyesight of deinonychosaurs like Velociraptor and Stenonychosaurus was superior to that of allosauroids and matched or exceeded that of extant predatory birds. Their binocular field of view extended to 60°. The location of tyrannosaurid eyes implies that they had a highly developed sense of vision. They have stronger binocular eyesight than allosauroids due to the form of their heads. Tyrannosaurus rex's eye position was comparable to that of modern humans, but its eyes and optic lobe were far bigger. T. rex, unlike other dinosaurs, had excellent vision as well as a keen sense of smell. The binocular vision of Daspletosaurus has been found to be less than that of Stenonychosaurus, but more than that of Gorgosaurus.