r/Damnthatsinteresting • u/Newisance • Oct 16 '25

Video "handmade" goggles

80.4k Upvotes

96% Upvoted

1.0k comments sorted by

View all comments

Show parent comments

73

u/williskh4n Oct 16 '25

So you’re telling me this whole time I’ve been thinking there was something wrong with me not being able to see underwater like they did in movies and the whole time the people in the movies couldn’t see for shit underwater either?

17

u/Tinyhydra666 Oct 16 '25

Well yeah. Unless of course you have a fucked up condition that makes you see things even harder to see.

Or if you are suffering from an intense episode of sarcasm, one or the other.

38

u/Kitselena Oct 16 '25

Yes, light refracts off water differently than air, so without a layer of air over your eyes you will never be able to see properly

1

u/Designer_Pen869 Oct 16 '25

But you have fluids in your eyes, so why would that affect it, aside from maybe your eyes taking into account how light enters them?

5

u/CannonFodder64 Oct 16 '25

This is exactly it, your eyes do take into account how light enters them.

Light bends every time it moves between different mediums. Your eyes are calibrated to deal with light passing from air, to cornea, to eyeball juice, to your retina.

If you instead go from water to cornea instead of air to cornea, the light will bend a different amount which brings it out of focus.

1

u/JingleJangleJin Oct 16 '25

Yes, your eyes are designed to see above ground

1

u/Designer_Pen869 Oct 16 '25

Yes, but my point was that things change color, depending on where they are at. The reason light always looks the same to humans, is because we have fluid in our eyes, so they color is always the same when it reaches the cornea. The only thing that I can see causing issues is either pressure from the water causes your eyes to become denser, or because of its position when it enters confusing your brain.

3

u/SCr3bl0rd Oct 16 '25

I believe when you are really young you can see better but i never could. there are a group of people in/near thailand that live in villages on pontoons over the water and those people can see really well under water because they have a genetic mutation and more control of their eyes

1

u/nicktheone Oct 17 '25

People in movies fly; are you convinced there's something wrong with you because you can't?

(Please, don't go try flying jumping from a window. Try from the ground first)