At least for me, I notice that when I squint, my vision becomes sharper. I don’t know if this is a common thing, but I’m curious as to why it happens
In: Biology
Most of these comments are good but as I’ve been taking an anatomy class I wanna add something that might be of some help.
The retina covers the entire inside of your eye. There’s a spot on your retina called the fovea. When focusing, your eyes try to focus the light onto the fovea to allow for maximum focus, because the fovea has lots of cones.
Your eye actually has many muscles that help light to focus on the fovea, like muscles that move the eye towards your midline/away from your midline. There are muscles that help bend the lens and there are muscles that help constrict your pupils.
I imagine that squinting helps focus in the same way that your pupils contract. When focusing on something that’s closer to you, your pupils become smaller so that the object (which is a relatively small area in your field of view,) is the only thing focused onto your fovea.
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