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What is saccade?

Dr. Mehmet Oz, MD
Cardiology (Cardiovascular Disease)

A lot of times, we assume that the mind's eye works like a copy machine or a camera: We see something in the world, process it, and form an exact representation of what that object is. The reality is that your mind is hardly as mechanical as a copy machine; it extrapolates, interprets, and perceives. And sometimes we can't see subtle differences between two similar things. That can be attributed to something called a saccade - that's a fast movement of the eye that lasts between 20 and 200 milliseconds. These movements refresh an image - meaning that we take chunks of that image and process it, rather than reprocessing the whole thing. The phenomenon helps explain why our vision is synthetic - and unlike a camera.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.