- They can't see any color, but they have two focus-point areas (fovea) on their retina: one to look forward and one to look behind.
- The "w" shape of their pupil allowed them to see the polarization of light, which enables them to see with greater contrast.
- They focus their eyes by reshaping the entire eye, not just the lens.
- They have no blind spot because their optic nerve is behind the retina
- Scientists have speculated that their eyes are fully developed while they're still in their eggs, and they prefer to eat things they have seen swim by whilst in their eggs.
I have no idea what it would look like to be able to focus on two objects at once, or be able to perceive the polarity of light--all I know is that it would be AWESOME.