To understand what visual perception is all about, it is not so much the transport of visual information that is of significance. It is rather the process involved in the interpretation of this information, the creation of visual impressions.
The question that arises is whether our ability to perceive the world around us is innate or the result of a learning process. Another point to be considered is whether sensory impressions from outside alone are responsible for the perceived image or whether the brain translates these stimuli into a perceivable image through the application of its own principles of order. There is no clear answer to this question. Perceptual psychology is divided on this point.