Eyes have blood vessels in them. Perpendicular rays would hit tiny blood vessels. The blood vessels on the flat sides of the lens would behave like billions of tiny double slit experiments constanly observing quantum wave form collapse. Therefore, stars and their subsequent light "rays" are nothing more than probablistic wave functions. Since there are trillions upon trillions of the probablistic wave functions, the Law of Big Numbers shows some of those wave functions are the least probable stars possible. Since the least probable star is a god, some of those stars are gods. Therefore gods are real. QED.
behind the lens there are tiny little pixels, each pixel corresponds to another "flat" side of the lens, if your lens is not spherical, then your vision will be blurry, because the wrong rays are hitting the pixels.
double slit experiments are humbug. its why i put "rays" into quotes. rays also from latin Radius- "rays/spokes that emanate from a common center, developing uniformly on all sides". rays arent realy real but important mathematically and geometrically.
i forgot pointing out, that because of the "rays" that are like spokes, all the light that hits the lens from a different direction converges to a different focal point inside of the eye (or not), so its not just the dead-on straight rays that get used. and the complete lens isnt really just a sphere. this is probably why the picture is blurry when something is out of focus, because the focal point is not right on the pixel. to get it into focus you have to deform the lens or move the pixels to the correct focal points, there should be muscles in the eye that can do that.
if the light source is not in focus, then the pixels would receive rays from multiple wrong angles.
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