Why is it that when a nearsighted blurry vision becomes clear when looking through a very small hole cutout?
In: Biology
Most people are just telling you to look up something online, completely missing the fricking point of the sub.
The reason things are blurry is because your eye lens is too strong (or too weak) to focus the light where it’s meant to be for a clear image.
Light that hits a lens strait on is not “refracted” at a different angle. So it does not matter if the lens is the right “strength” to focus the light. It passes strait through regardless.
Making a small hole limits it so that the only light bouncing off the object to reach your eye is the light going strait. Ie blocks all light not traveling strait through the centre of the lens.
Therefor you can see
The only thing that limits it is how much light can pass through the hole to be able to actually “see” it (which is why we have eyes bigger than pinholes in the first place with the lens as a corrective measure)
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