Diplopia is when you see two images of the identical thing. We can distinguish between two types of diplopia, namely, monocular, and binocular diplopia. Monocular

Crossed eyes or medically known as strabismus occurs when eyes are not aligned with each other. The brain is unable to coordinate eyes to work

Lazy eye or medically known as amblyopia is a condition when the connection between the brain and eyes breaks down. Consequently, the brain is incapable

Convergence insufficiency is a condition in which eyes are unable to function together when looking at nearby objects. Our brain combines information it receives from