A member asked:

I have keratoconus and wearing rgp lenses in a piggy back. does the power of the soft lens affect fit or improve vision?

3 doctors weighed in across 2 answers

Piggyback rgp kcn: The primary power is in the rgp (rigid gas permeable) that goes on top of the soft lens. The soft lens is mostly to improve comfort and fit of the overlying rgp.

Answered 8/30/2013

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Dr. William Trattler answered

Specializes in LASIK Surgery

Contact lens: The powers in both contact lenses contribute to the overall power of the contact lens system that you are using.

Answered 11/24/2013

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Related Questions

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What is considered blurred vision symptom in keratoconus?

A doctor has provided 1 answer