The human eye sees things upside

According to the laws of physics, collective lens flips the image of the object. And the cornea and lens are collective lens, so the image on the retina also falls upside down. After that, the image is transmitted along the nerves to the brain, where we get a residual image, what it actually is.

Newborn child sees objects overturned. Especially the eyes see an inverted image appears gradually, through education and training, which involves not only visual, but also the other analyzers. Among them, the main role is played by organs of balance, muscle and skin sensations. As a result of the interaction of these analyzers having a complete image of external objects and phenomena.

An interesting way to verify this fact: finger gently press on the outer edge of the lower eyelid of the right eye. You will see a black dot in the upper left corner of your vision - a real picture of your finger.

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