belows the full assigned question. i just need answer for the third one in context of the other question! I will type it again as well : How could our eyeballs have been designed better?

In what ways do our retinas appear to be built "backwards"? Explain this and explain how this relates to the blindspot and fovea humans have in each eyeball. How could our eyeballs have been designed better? How/why do you think evolution would have crafted our eyeballs this way rather than building in a more sensible way?

please answer : How could our eyeballs have been designed better?