Our eyes are such elegant, complex, specialized organs that their existence seems almost hard to believe--Darwin himself called their evolution "absurd." But that doesn't mean they're perfect; eyes sometimes don't focus correctly, they break down over time, and they can be extremely painful if infected, irritated, or exposed to light that's too bright. Italian biotech startup MHOX is embarking on an ambitious project: to improve human eyes by making synthetic replacements.

"Latest developments in bioprinting and biohacking let us imagine that in the near future it would be possible to easily print organic, functional body parts, allowing the human to replace defected districts or enhance standard performance," lead designer Filippo Nassetti told Dezeen.

The concept is called Enhance Your Eye (EYE, of course) and are made from a 3D bioprinter, which uses a special needle to drop different types of cells into the appropriate alignment and structure. Bioprinters can already make organs such as ears, blood vessels, and kidneys, but eyes remain elusive because of their complexity.