Does an optimum size of the eyes help in proper vision so it shouldnt be too big or small?
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The size of the opening that lets light into your eye affects how much detail you can see. If you have a very large eye, you can see more details, especially if they’re far away. But giant eyes are also a weakness because they’re fragile and they take energy to grow and keep alive.
So the best size for your eye kind of depends on what you need to see. For the most part, all animals care about seeing things that are about the size of the things they eat and the things that will eat them. Mice need to see more small things than elephants do. So a mouse needs eyes that look bigger its head than an elephant.
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