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A refraction is a test done by your eye doctor to determine if glasses will make you see better and what your prescription is.

The charges for a refraction are covered by some insurances but not by all.

For example, Medicare does not cover refractions because they consider it part of a “routine” exam and Medicare doesn’t cover most “routine” procedures--only health-related procedures.

So if you have a medical eye problem like cataracts, dry eyes, or glaucoma then Medicare and most other health insurances will cover the medical portion of the eye exam but not the refraction.

Some people have both health insurance--which covers medical eye problems--and vision insurance--which covers...

The 2024 National Coffee Drinking Trends report showed that 67% of Americans said they had drunk coffee the previous day, which is interpreted as daily consumption. This is well up from 57 percent in 2016--more and more people are enjoying a cup of joe. 

Even though the U.S. population is drinking more coffee than ever, the nation still only ranked 24th overall in per capita consumption. The people of Finland average nearly 3 times as much coffee consumption as people in the U.S.

So what does all this caffeine intake do to our eyes?

The research is rather sparse and the results are mixed.

Here are some major eye topics that have been investigated:

Glaucoma

One study, published in the...