Parkinson’s disease is a condition in which parts of the brain become progressively damaged over many years. The main symptoms of the disease affect physical movement – which many people are familiar with. However, there are many more symptoms which are not obviously associated with the condition. One such symptom is experiencing blurred vision.
According to the NHS, blurred vision associated with Parkinson’s disease occurs when moving from a sitting or lying position to a standing one.
This causes a sudden drop in blood pressure, which can make your vision blurry.
In line with this, dizziness and fainting could also happen when moving from a sitting or lying position to a standing one.
There are many reasons why someone might experience blurred vision, dizziness or fainting, but if present with other symptoms they could be a sign of Parkinson’s disease.
Other less obvious symptoms of Parkinson’s disease include problems with urination – such as needing to urinate more during the night and urinary incontinence – and constipation.
The disease can also cause loss of sense of smell, erectile dysfunction, excessive sweating and drooling.
Difficulties with swallowing and problems sleeping can also be symptoms of Parkinson’s disease, as can nerve pain and balance problems.
According to the NHS, loss of sense of smell can sometimes be the first symptom to appear, occurring several years before other symptoms develop.
The three main symptoms of Parkinson’s disease affect physical movement and include tremors, slowness of movement and muscle stiffness.
Tremors usually begin in the hands or arms, and are more likely to occur when the limb is relaxed and resting.
Slowness of movement is when physical movements are much slower than normal. It can result in a distinctive slow, shuffling walk with very small steps.
Muscle stiffness causes tension in the muscles which can make it difficult to move around and make facial expressions, and can result in painful muscle cramps.
Cognitive and psychiatric symptoms of Parkinson’s disease include depression and anxiety, dementia and more mild cognitive impairment.
“The order in which these [symptoms] develop and their severity is different for each individual,” said the NHS.
“It’s unlikely that a person with Parkinson’s disease would experience all or most of these.
“See your GP if you’re concerned you may have symptoms of Parkinson’s disease.”