Guys guys, a simple look at the retina down a microsope shows it's NOT wired back to front, it's a solid indisputable FACT and not open to argument..
Perhaps my earlier link isn't working, so i'd better post this extract that demolishes Dawks-
"The light-detecting structures within photoreceptor cells are located in the stack of discs.
These discs are being continually replaced by the formation of new ones at the cell body end of the stack, thereby pushing older discs down the stack.
Those discs at the other end of the stack are swallowed by a single layer of retinal pigment epithelial (RPE) cells. RPE cells are highly active, and for this they need a very large blood supplythe choroid.
Unlike the retina, which is virtually transparent, the choroid is virtually opaque, because of the vast numbers of red blood cells within it.
For the retina to be wired the way that Professor Richard Dawkins suggested, would require the choroid to come between the photoreceptor cells and the light, for RPE cells must be kept in intimate contact with both the choroid and photoreceptor to perform their job. Anybody who has had the misfortune of a hemorrhage in front of the retina will testify as to how well red blood cells block out the light.
The idea that the eye is wired backward comes from a lack of knowledge of eye function and anatomy"