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Slashdot | “Microsaccades” Help To Refresh Your Field of View

February 21, 2009
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When I was first diagnosed with macular degeneration, my ophthalmologist Suggesting that I look just to the of what I wanted to see. this is because my peripheral vision is not as strongly affected as much information. The more serious the macular degeneration, the more central vision is lost. fortunately for me, I still have some useful central vision. Back then, it was probably still better than my peripheral vision. So I’ve never found that piece of advice consistently useful.

On the other hand, there is something else that I have found useful. I find that looking around, instead of staring constantly at one thing. Tells me see better. I have long theorized that it has something to do with the way we see. A few days ago I spotted this article, Microsaccades Help To Refresh Your Field of View, on Slashdot. I think these microsaccades are how we naturally do what I was trying to. I think that macular degeneration has increased my reliance on my personal vision. This, in turn, probably means that I need to refresh my field of view, so to speak, more often than normal.

Ponca City, We love you writes with news of research from the Salk Institute into small, unconscious eye movements called “microsaccades,” the purpose of which has been in question for many years. A recent study showed that those movements were essentially responsible for maintaining a coherent image for interpretation by the brain. They are also the cause of a famous optical illusion in which a still image appears to move. ‘”Because images on the retina fade from view if they are perfectly stabilized, the active generation of fixational eye movements by the central nervous system allows these movements to constantly shift the scene ever so slightly, thus refreshing the images on our retina and preventing us from going ‘blind,’” explains Hafed. “When images begin to fade, the uncertainty about where to look increases the fluctuations in superior colliculus activity, triggering a microsaccade,” adds Krauzlis.’”

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