The optic nerve that sends visual signals to the brain must pass through the retina which creates a hole in that light-sensitive layer of tissue. When images project to that precise location, we miss them. This blind spot can be ‘shrunk’ despite the fact that the hole in our visual field cannot be. The findings raise the possibility that similar methods might improve vision in people with age-related macular degeneration, which is the leading cause of blindness.
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