Does all the light entering our eyes converge to a single point on the retina (assuming minimal aberration)? If this is true then that means that only a tiny point is exposed to light inside the eye so it will hit and activate a single cell (unless the cells are much smaller than the point of light). I just want to know if that's correct. I doubt that because light is processed by millions of cells working together to produce vision. Perhaps light hits a single or a very small number of cells which in turn activate others by some chemical reaction? I'm not interested in the biological details, only the optical ones (whether it focuses to a single point) I'm sorry if this all sounds absolutely pointless. I'm just curious about this. Thank you!