Researchers have found that fixational eye movement which occurs even when are gazing at a fixed object is responsible for visibility.
Professor Susana Martinez-conde and her research team from Barrow Neurological Institute in Phoenix have found that Microsaccades, which are rapid movements occurring inside the eye even when the person is looking at a fixed point, are also responsible for proper visibility.
Even when we are gazing at a fixed object our eye are continuously moving which make things visible and if these movement stops it leads to fading of objects and this continuous movement is called as fixational eye movement which makes the brain to make possible for making things visible for us.There as been lot of controversy over the use of rapid fixational eye movements during fixed eye gazing, whether they have any important function in visibility and these new findings have proved the usefulness of microsaccades in visibility which may be useful in treating fixational eye movement problems.