August 18, 2016 | Elly, Exhibitions Developer, Science Museum

I've had eye tests for glasses before, but it's never occurred to me they might be used to diagnose serious conditions such as Parkinson's disease.

There is currently no simple test for Parkinson's. Scientists studying the disease in rats found changes at the back of the rats' eyes before symptoms appeared.

There's a long way to go before we can use this technique in humans, but in the future it could lead to earlier diagnosis and better outcomes for patients.

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ophthalmologist

Parkinson's disease affects 1 in 500 people worldwide.

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Image: Flickr/gkweir

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