Eye yoga involves eye movements that may strengthen the muscles in your eyes. However, there is not a large amount of evidence to support its purported benefits. Yogic eye exercises, also called ...

The eye muscles have to be fast. Just to track an object involves at least seven different highly coordinated movements. If eye muscles were slow, we couldn't focus on anything moving around us.

Diplopia is also known as double vision. It occurs when the pair of muscles that control a particular eye movement weaken and become uncoordinated. When the images are not properly aligned ...

The frequency and duration of large muscle group leg movements during sleep change over time, and show distinct sleep stage differences.

These include stiffness of neck and trunk muscles (rigidity), slowness of movement (bradykinesia), and impaired balance. Unlike classic Parkinson's disease, tremor is rarely a prominent part of PSP.