Hyper-phoria is an eye condition where one eye tends to look higher than the other eye.
The problem with eyes being out of alignment is similar to your automobile wheels being out of their alignment. You tend to use one eye more than the other eye, and that works your eyes unevenly. When eyes do not work in sync, but fight against each other, reading becomes extremely difficult.
In most cases of hyper-phoria, you can compensate for this misalignment by tilting your head to one side, even if slightly only, to prevent seeing double vision. In severe cases, you will not only tilt your head, but also your neck, the shoulders, and your spine as well. This leads to headaches, neck aches, shoulder pains as well as backaches, all stemming from your eye problem!