A 46-year-old member asked:

What's the machine optometrists use to estimate your prescription from your glasses?

1 doctor answer • 1 doctor weighed in

Dr. William Goldsteinanswered

Ophthalmology 33 years experience

Lensometer: This measures the strength of your current glasses.

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5.8k viewsAnswered >2 years ago

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Last updated Jul 3, 2012

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