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b3miine_x3


05/02/2012

What does hF stand for on contact lenses?

Related Topics : contact lenses
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Answers (2)

  • Caroline hill

    05/02/2012

    Eye doctors use the letters ""H"" and ""F"" with contact lenses to identify specific aspects of the prescription. F is an abbreviation for the power of the back of the lens, and H represents a calculation for distance. The information is needed in some cases for custom-made contact lenses. Source:https://www.ehow.com/facts_7335898_mean-contact-lenses_.html
  • chriso1984

    05/02/2012

    HF on contact lenses are used to identify specific aspects of the prescription. F stand for the power of the back of the lens, and H stand for the distance at which the F correction is accurate.
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