What often causes overactive eye movement

Ritalin along with other types of stimulants causes overactive eye movement.

Explanation: Stimulant is a form of  drug used to increase temporary alertness and increased energy. Ritalin belongs to a group of stimulant called Methylphenidate, not only this but other stimulants such as cocaine, nicotine etc also cause overactive eye movement which is a condition in which a person is unable to give equal attention to multiple visual tasks at once.

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