Eye Movements - Uncontrollable
Alternate Names : Back and Forth Eye Movements, Involuntary Eye Movements, Nystagmus, Rapid Eye Movements from Side to Side, Uncontrolled Eye Movements
Pictures & Images
External and Internal Eye Anatomy
The cornea allows light to enter the eye. As light passes through the eye the iris changes shape by expanding and letting more light through or constricting and letting less light through to change pupil size. The lens then changes shape to allow the accurate focusing of light on the retina. Light excites photoreceptors that eventually, through a chemical process, transmit nerve signals through the optic nerve to the brain. The brain processes these nerve impulses into sight.
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