A small device that measures eye movements could help families determine if a severe dizzy spell is harmless, or a stroke.
Researchers at Johns Hopkins have been studying the home device, and say that so far, it's been 100-percent accurate in identifying patients with stroke symptoms.
It's not available yet, but experts are hoping this portable device could someday lead to earlier stroke diagnosis and prevent the misdiagnosis of as many as 100-thousand strokes a year.
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