Coloring My World

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Dear Undercurrent,

At the ripe age of almost 63, I am going to order a prescription bifocal mask from SeaVision, which was discussed favorably in your Sept 2011 issue. The problem is they offer lenses in clear, magenta, and yellow. I was hoping you had published something discussing the pros and cons of colored lenses.

- Hugh Aaron (Tallahassee, FL)

Dear Hugh,

Our brains have a remarkable ability to adjust. For example, our eyes see an inverted image, but our brain re-inverts it. It's the same with color....

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