By Dr. Brian McDonough, Medical Editor

PHILADELPHIA (CBS) – When studies are done on very small samples of people it is difficult, if not impossible, to use the information and apply it to larger numbers of people, but in some cases it is still interesting to report on them because of the potential.

This is the case in a Johns Hopkins study where the researchers looked at something that impacts 2.6 million people every year, simple dizziness. It needs to be taken seriously because it could be a sign of a stroke.

We often have to do CT scans or MRIs to rule it out. The Hopkins researchers think they can use goggles – that’s right – goggles to help make the diagnosis. They say in the early stages of stroke three bedside tests that measure eye movements could be as good as MRIs.

More to follow.