Was it designed? The human eye.

The human eye

The human eye is a remarkable design. Like a camera, it uses a lens to focus light on the back of the eye.

Consider: There is a flaw to this remarkable design, though. 

"The anatomy of the human eye, in fact, shows anything but ‘intelligence’ in its design. It is built upside down and backwards, requiring photons of light to travel through the cornea, lens, aquaeous fluid, blood vessels, ganglion cells, amacrine cells, horizontal cells, and bipolar cells before they reach the light-sensitive rods and cones that transduce the light signal into neural impulses—which are then sent to the visual cortex at the back of the brain…." 

Michael Shermer

The bran compensates for this muck-up in design by filling in the space created by “blind spots" with imagined images. There are many optical illusions which can take advantage of this peculiar phenomenon.

Interestingly, whilst all vertebrates have this “design flaw”, cephalopod eyes do not. This suggests that God decided Octopuses should have better eyes than us! Even molluscs do not have this fault.

Also, there are many examples of eyes in the animal kingdom - in all stages of development. From simple light-sensitive cells in some animals to the advanced eyes of octopi and humans. Why would God not use the same design for all eyes, instead deciding to give out a mixed bag of results which looks an awful lot like the evolution of the eye?

What do you think? Do the obvious design flaws and inconsistencies (but natural progression from very simple beginnings to a working eye) point to the eye being created over millions of years through the process of evolution by means of natural selection? Or was it designed?

Tags: Eye