Tuesday, 23 February 2016

evolution - What is the advantage of the inverted image on the retina?


Recently, I learned that the image of the world which we see actually reaches the retina inverted. This is due to the fact that the retina lies behind the focus of our eyes.


I have two questions:




  1. When the retina lies behind the focus and the lens in our eyes has a spherical shape, shouldn't left and right also be interchanged?




  2. What is the advantage of this? Why does the retina lie behind the focus and not in front of it? Or doesn’t it matter since our brain is not a real screen and it’s only a question of the correct interpretation of the electic signals?







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