How did the German physicist Helmholtz assess the degree of perfection of the human eye? Detailed answer

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How did the German physicist Helmholtz assess the degree of perfection of the human eye? Detailed answer

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How did the German physicist Helmholtz assess the degree of perfection of the human eye?

For all its perfection, the human eye is still not without flaws. The German physicist Hermann Ludwig Ferdinand Helmholtz (1821-1894), who studied the optics of the eye, once said: "If an optical workshop had sent me such an instrument, I would have returned it for alteration."

One of the shortcomings of the human eye is the following. The human eye, like the eyes of many animals, belongs to the so-called inverted (reversed) type: the optic nerve is connected to the light-sensitive cells of the retina not from behind, but from above. This allows the retina to detach from the wall of the eyeball, resulting in loss of vision. If the endings of the optic nerve join behind, from the side of the wall, this will strengthen the light-sensitive layer of the retina.

This is how the eye of the squid works, and no one has ever seen a squid with a retinal detachment.

Author: Kondrashov A.P.

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