What term is used for the normal alignment of both eyes?

The term used for the normal alignment of both eyes is Binocular Vision. This refers to the ability of the brain to combine the images received from each eye into a single three-dimensional perception. Effective binocular vision allows for depth perception and a wider field of view, both of which are crucial for tasks that require hand-eye coordination, such as driving or sports.

Monocular Vision, on the other hand, pertains to the use of one eye, which can limit depth perception and spatial awareness. Diplopia involves seeing double, indicating that the eyes are not aligned properly and are not functioning together as intended. Aniseikonia refers to a condition where there is a significant difference in the perceived size or shape of images between the two eyes, affecting how images are combined in the brain. Thus, binocular vision is essential for normal eye alignment and coordinated function.