When you open your eyes underwater, are you nearsighted or farsighted?
Added by Mark H.
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Step 1: In air, your cornea provides most of the eye’s focusing power, helping you see clearly at distances. Show more…
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Explain When you open your eyes underwater, everything looks blurry. Can this be thought of as an extreme case of nearsightedness or of farsightedness?
When you swim underwater, your vision is compromised, as we've seen. The same is true of water-dwelling animals that venture up into the air. a. When you open your eyes underwater, are you nearsighted or farsighted? b. When a dolphin pokes its head out of the water, is it nearsighted or farsighted?
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When a diver with $20 / 20$ vision removes her mask underwater,her vision becomes blurry. Why is this the case? Does the diver become nearsighted (eye lens focuses in front of retina) or farsighted (eye lens focuses behind retina)? As the index of refraction of the medium approaches that of the lens, where does the object get imaged? Typically, the index of refraction for water is $1.33,$ while the index of refraction for the lens in a human eye is $1.40 .$
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