How do our eyes “lock on” to objects, keeping them in constant focus despite movement, to the point where un-focusing takes conscious effort?

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How do our eyes “lock on” to objects, keeping them in constant focus despite movement, to the point where un-focusing takes conscious effort?

In: Biology

3 Answers

Anonymous 0 Comments

Your brain fixes everything.

Your eyes are actually constantly moving, jittering around a little bit and they never stop. You never notice, because your brain decides that it’s better to filter all that out.

Your brain also fixes things like the blind spot you have in each eye from where your optic nerves meet your eyeballs, your lack of color perception on the edges of your vision (it fills in the color it remembers seeing), motion of your head and such.

It does this because if it didn’t, your crap vision would have led to your ancestors getting eaten more frequently.

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