I just came across this extract from a commentory on Natural Theology, by Dr.William Paley:
‘To keep the eye moist and clean - which qualities are necessary to its brightness and its use - a wash is constantly supplied by a secretion for the purpose; and the superfluous brine is conveyed to the nose through a perforation in the bone as large as a goose quill. When the fluid has entered the nose, it spreads itself upon the inside of the nostril and is evaporated by the current of warm air which in the course of respiration is continually passing over it… It’s easily perceived that the eye must want moisture; but could the "want" of the eye generate the gland which produces the tear, or bore the hole by which it's discharged - a hole through bone? Let the evolutionist tell us who bored the hole...and laid a water pipe through it for the dispersion of tears.’
Hard to see how a natural selection process driven by random mutations rather than need could generate such "nice to have" features of the human body. Having tears chanelled into the nose cavity is not exactly a survival issue.
In the scenario for human design, a need is recognised by intelligent perception, and a solution is found by manipulating existing materials and forces. Is this a replication of God's design?
Unfortunately, certain other oft-cited facts suggest that your 'God's handiwork' is highly deficient, and positively perverse in the bodily facilities he has granted his supposedly cherished creation, humankind. William Thwaites makes the following apposite comments:
"Another example straight out of creationist tracts involves the vertebrate eye that humans must share with the other vertebrates … the vertebrate eye shows poor design when compared to the eye evolved by the cephalopods. The vertebrate eye has a blind spot where the retinal nerves and the blood vessels exit the eye. There is no comparable blind spot in the cephalopod eye. The structures of the retinas spell the difference. Everything a vertebrate sees is seen through the nerves and blood vessels of the retina since the photosensitive elements of the retina are on the far side of the retina away from the light source. Clearly the cephalopod solution to retinal structure is more logical, for they have the photosensitive elements of the retina facing the light. Certainly the creationists need to explain why we got the inferior design. I had thought that people were supposed to be the Creator’s chosen organism"
cited here:
www.asa3.org/ASA/PSCF/2000/PSCF3-00Bergman.htmlWe have to ask ourselves, did God have some special plan for the octopus or squid in granting them the superior optical design, or was he somehow so deeply compromised by the other aspects of the human form that he had created, that getting the 'wiring' of the eye arse about face was an inevitable consequence?