Human Anatomy and Physiology

How does your brain work with your eyes to see an object?

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June 01, 2008 6:45AM

The brain works with the eyes to see an object by means of the visual system which allows information from the environment to be interpreted in a process that begins with the lens and retina of the eye and ends with the cortex of the brain. # The lens of the eye focuses an image of its surroundings onto a light-sensitive membrane in the back of the eye, called the retina. # The retina is actually the part of the brain that is isolated to serve as a transducer for the conversion of patterns of light into neuronal signals. The lens of the eye focuses light on the photoreceptive cells of the retina, which detects the photons of light and responds by producing neural impulses. # The primary and secondary visual cortex of the brain receives these signals from the lateral geniculate nucleus as they are processed in a hierarchical fashion by these different parts of the brain.