What Do The Measurements Of My Eyeglasses Mean?

Close-up of a person adjusting eyeglasses with purple and glitter nail polish, emphasizing personal style.

Ever looked at your eyeglasses and wondered what all those numbers and measurements actually mean? This is a comprehensive tour of eyeglass measurements, explaining how they translate from the frame to your face for optimal comfort and clear vision.

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How Do I Use A Monocular Telescope?

Close-up of a subway sign for 7 Avenue Broadway Times Square in NYC, with a small telescope in the foreground.

Learn how to use a monocular telescope to improve your distance vision. We’ll show you how to focus it and explain the important trade-off between magnification power and field of view.

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