Do large eyes see better than small ones? Does size matter (in eyes)? There are

Question

Do large eyes see better than small ones? Does size matter (in eyes)? There are three possible answers: 1) There are more light gathering rods and cones of someone with a larger retina than a smaller one, which would result in a higher resolution image in the brain for a larger retina. 2) The number of cones and rods is the same on a small or large retina, but each cell is larger and therefore gathers more light, resulting in better low-light vision for someone with a large retina. Or 3) The number and size of light gathering cells is roughly the same for adults with larger or smaller retinas, but there are larger gaps (and more supportive cells) between rods and cones in larger retinas. This would result in equivalent eyesight among adults with different sized retinas. Which possible answer is correct?

Explanation / Answer

Well, I think the idea behind - if you have a bigger eye, you want to get as much light onto your retina as you can, so you can get a more detailed picture of the outside world. So you often see large eyes in nocturnal animals that rely on sight, things like aye-ayes and bush babies, or fish, or indeed cephalopods like giant squid in the deep sea where it

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