Parkinson’s disease: Eleven vision symptoms warning you may be at risk of the condition

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Parkinson’s disease: Eleven vision symptoms warning you may be at risk of the condition

Parkinson’s disease is a common neurodegenerative disorder affecting middle-aged and elderly people. It is a disease characterised by a deficiency of dopamine in areas of the midbrain causing a variety of movement problems such as akinesia (the loss of ability to move your muscles voluntarily), rigidity, and tremor. The eyes may also be affected with this condition and if suffering from any of these eleven vision symptoms, it could mean you may be at risk.

In a study published in the journal Hindawi, visual signs in Parkinson’s disease was investigated.

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The study noted: “Parkinson’s disease is a common disorder of middle-aged and elderly people in which degeneration of the extrapyramidal motor system causes significant movement problems.

“In some patients, however, there are additional disturbances in sensory systems including loss of the sense of smell and auditory and/or visual problems.

“Changes in vision in PD may result from alterations in visual acuity, contrast sensitivity, colour discrimination, pupil reactivity, eye movements, motion perception, visual field sensitivity, and visual processing speeds.

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“Slower visual processing speeds can also lead to a decline in visual perception especially for rapidly changing visual stimuli.

“In addition, there may be disturbances of visuospatial orientation, facial recognition problems, and chronic visual hallucinations.

“Visual signs and symptoms of PD may include defects in eye movement, pupillary function, and in more complex visual tasks involving the ability to judge distance or the shape of an object.

“PD patients often complain of poor vision especially as the disease progresses resulting, in part, from poor visual acuity, low contrast acuity being especially affected.

“Impaired visual acuity also appears to be a risk factor for the development of chronic hallucinations in PD.”

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