Parkinson’s disease can affect the eyes – here’s what we know so far – The Conversation UK

Parkinson’s is a motor disease which can affect eye movement. Lucky Business/ Shutterstock

Parkinson’s disease is the second most common neurodegenerative disease, affecting over 10 million people worldwide. It’s characterised by changes in movement, including tremors, and slower and more rigid movements. But researchers are also beginning to investigate other symptoms of Parkinson’s disease – including those involving the eye.

Parkinson’s results from the degeneration of dopamine neurons in the brain’s basal ganglia – an area involved in voluntary movement. Though no cure exists for Parkinson’s, symptoms can be managed with drugs that replace dopamine.

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