Contact lenses under water

Do people wearing contact lenses under water get the same clarity in their vision as someone wearing goggles? Or do they get the same normal blurry look that you get when you are wearing nothing over your eyes?

You shouldn’t wear contact lenses under water if you plan on keeping them on your eyes, and not somewhere in the pool, or wherever.

Take them out before you swim, or don’t put your head under.

Yes.

The last thing you will see if you wear your contacts under water is your contact floating away from you.


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Satan

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I agree – don’t open your eyes under water while wearing contacts. It’s easy to lose them.

That being said, on the one occasion when I briefly tried this, I got the same blurry view I used to get as a kid before I wore contacts, not the clearer view you get with goggles.

Mrs. Cal lways takes hers out before she gos into the pool, for the reasons given.

Even if you had them stuck on your eyes so they wouldn’t drift off, though, they wouldn’t keep your vision from blurring. It’s the same reason things look blurry when you open your eye underwater – you’ve just changed the optical power of your eyes by immersing them in water.

Despite the fact that your eyes have a “lens” in them, most of the optical power (lensing effect) actually occurs at the cornea/air interface, because that’s where the biggest index difference is. (The lens is used for “fine tuning”). The optical power is approximately the idex difference between the cornea and the air divided by the radius of curvature of the cornea. If you replace the air by water the index difference becomes a LOT smaller, and the power becomes smaller, too. The focal point shifts farther away from the cornea, o instead of focusing at the retina the image appears somewhere inside your brain. Well, it would, except your retina stops it first, so it receives a blurry, out-of-focus image. Exactly the same thing happens if the interface that does most of the bending is the front surface of a contact lens.

i’ve actually worn lenses in pools, lakes, seas, and oceans. i figure i saw what most people who can see without glasses see. i didn’t lose them although a direct splash in the face was a bit dicey.

i have one pair of lenses that i use when swimming in treated water, the chlorine does harden them a bit. when that pair gets too hard i just toss and go with a new pair.
i also switch back to the lenses i was wearing after swimming.

i’m sure that my eye doctor would not like to know that i do this. i’m sure it is a very bad thing to do.

We used to have some cliffs on our lake about 40-50 feet high that we could jump off of until richies built houses on them. A friend of my dads jumped with his contacts once and had to have surgery to get them out, apparently they got jammed up in his eyelids somehow, so no diving with contacts! :smiley: