I’ve dealt with this problem all my life – i have high powered glasses (-6 and – 8, with some cylindrical /spherical tweaks). My glasses work great. But i wore them while swimming in the crystal blue Mediterranean, and when I’m diving in, i realized the glasses aren’t effective. I understand the wavy reflective patterns interrupting, but why cant I focus on anything easily?
In: Physics
Glasses work due to their chape. If the glasses were surrounded by the same glass, they would not have the necessary shape (because you couldn’t distinguish glasses-glas from surrounding glass). For water, it is the same, just to a lesser degree.
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