Last updated: Jun 06, 2011

Sometimes I see little brown specks floating in my field of vision. Should I be worried?

Q:A: Those squiggly, dark lines and spots are called "eye floaters." They are typically caused by age-related changes in the vitreous humor, the jelly-like substance that fills most of the eyeball. Floaters are common and usually nothing to worry about. If you start having them while seeing flashes of light, though, or suddenly get a bunch at once, see an ophthalmologist right away—you could have a tear in your retina, which may lead to vision loss if not treated ASAP.