Lazy eye

Lazy eye is the eye that is usually less open than the other. In most cases the left eye is lazy. For example, if you look at a photo of a person, one eye is open more than the other, this is a good example of a lazy eye.
Lazy eye causes
Most people have the right hand more developed than the left and due to this, the hemispheres of the brain are unevenly developed also. A person uses his right hand much more often and builds more neurological pathways in his left hemisphere of the brain. The left hemisphere is responsible for the right eye, right hand. A person just gets used to looking with his right eye more often and he overuses it and strains, and this may even worsen his vision. Because the eye muscles are overstrained and tired. And with the left eye looks less, because the right hemisphere is weaker and it works less and sends fewer signals to the eye to work. That is the main reason why the lazy eye is underdeveloped and works less than the other.