How many times have creationists heard this from sources like the USS Clueless...”Occasionally I see creationists point to the human eye as a miracle of design, as if this somehow is evidence of divine origin for the human form. Unfortunately, from an engineering perspective, the human eye is seriously suboptimal. It simply isn’t that good a design.” I would say, quite a number of times, especially from those like Kenneth Miller who is a Professor at Brown University who argues for signs of bad design which they say disproves creationism so they use the human eye as an example. Why? Because our eyes’ have photoreceptor cells which face away from incoming light and the optic nerve extends over them thus supposedly making it “suboptimal” (without showing how it could be improved) because it blocks some light.
What generally always happens with these arguments from evolutionists, they get shot down by advancements in science either by creationist scientists or by their own data or both. Sometimes it takes many years. The human eye debate has been written about and debated about for many years. Creationists as well as the modern intelligent design movement have been arguing for years that the human eye is well designed here are two examples the first one being from the modern intelligent design movement…
“The photoreceptors in the human eye are oriented away from incoming light and placed behind nerves through which light must pass before reaching the photoreceptors. Why? A visual system needs three things: speed, sensitivity, and resolution. The inverse wiring does not affect speed. Nor does it affect resolution, except for a tiny blind spot in each eye. You don’t usually notice it because your brain’s visual harmonization system easily compensates for the blind spot. You need to do special exercises to discover it. What about sensitivity? Sensitivity requires an inverted retina. Retinal cells require the most oxygen of any cells in the human body, so they need lots of blood. But blood cells absorb light. In fact, if blood cells invade the retinal cells, irreversible blindness may result. By facing away from the light, retinal cells can be nourished by blood vessels that do not block the light. They can still be so sensitive that they respond to a single photon, the smallest unit of light.” -2008
The second one being strictly from ICR, one of the main websites that advocate creationism…
“Research by ophthalmologists has clearly shown why the human retina must employ what is called the “inverted” design. An inverted retina is where the photoreceptors face away from the light, forcing the incoming light to travel through the front of the retina to reach the photoreceptors. The opposite placement (where the photoreceptors face the front of the eye) is called a “verted” design. One of the many reasons for the inverted design is, behind the photoreceptors lies a multifunctional and indispensable structure, theretinal pigment epithelium (Martínez-Morales 2004, p. 766). This monolayered tissue contains the black pigment melanin that absorbs most of the light not captured by the retina. This design has the very beneficial effect of preventing light from being reflected off the back of the eye onto the retina, which would degrade the visual image.”
“The photoreceptors (rods and cones) must also face away from the front of the eye in order to be in close contact with the pigment epithelium on the choroid, which supplies the photoreceptors with blood. This arrangement allows a “steady stream of the vital molecule retinal” to flow to the rods and cones without which vision would be impossible (Kolb 2003, p. 28). The verted design, claimed by Miller to be superior, would place the photoreceptors away from their source of nutrition, oxygen, and retinal (the choroid). This design would cause major problems because rods and cones require an enormous amount of energy for their very high metabolism required in functioning, maintenance, and repair. In addition, because of phototoxicity damage, the rods and cones must completely replace themselves approximately every seven days or so.”
As you know, evolutionists have been arguing that the human eye was designed poorly until now…Israel Institute of Technology, a think tank for evolution says they have discovered why the human eye is wired backwards and it’s not because of a poor design…
“Previous experiments with mice had suggested that Müller glia cells, a type of metabolic cell that crosses the retina, play an essential role in guiding and focusing light scattered throughout the retina. To test this, Ribak and his colleagues ran computer simulations and in-vitro experiments in a mouse model to determine whether colors would be concentrated in these metabolic cells. They then used confocal microscopy to produce three-dimensional views of the retinal tissue, and found that the cells were indeed concentrating light into the photoreceptors…”
“The retina is not just the simple detector and neural image processor, as believed until today,” Ribak added. “Its optical structure is optimized for our vision purposes.”
Even before this research came out, their has been attempts to build image sensors that are base on its design of biological retinas. If retinas are really that poor in design, then why would engineers be trying to make image sensors that are based on the retinas design? Since the research turned out to confirm creationism rather than evolution, researchers at Israel Institute of Technology has to bluff about its significance by claiming that “from a practical standpoint, the wiring of the human eye — a product of our evolutionary baggage — doesn’t make a lot of sense” is really confirmation of evolution…lol
Can you imagine if science came out with evidence of a bad design of the human eye and turned around and said, “Even though a bad design doesn’t make much sense, but this is a great product of creationism.” It wouldn’t be considered science right? Neither is the researchers view on evolution of the eye. These stories about evolution holds no scientific ground! We are blessed with amazingly designed eyes!