This has been bothering me for months now and google isn’t giving me answers. So, how?
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ELI5: Our eyes are just good at focusing!
If you’ve used a magnifying glass in the sun you can see how you can focus the light onto a single point on the ground, right? Basically, there is a small magnifying glass behind your pupil (called the crystalline lens) with a muscle attached to it so it can curve and straighten however much needed to focus the light. When you focus on something close up it curves more, and when you focus on something far away it straightens out as much as it can!
There is a sweet spot at the back of your eye (called the maculus) that’s almost right next to the nerve that connects to your brain. Ideally, the magnifying glass gets focused on this part of the eye, sending a clear picture to the brain!
It’s worth noting that some people with really bad prescriptions really do just see a mess of colors without their glasses lol, they really help!
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