THE CLEAR VISION GUIDE

Rigid gas-permeable lens (RGP) explained

A contact-lens category with a relatively stable shape and a material that permits oxygen passage.

Contact lenses and care

How to understand it

Fitting and adaptation differ from soft lenses. It is a category, not a single design or wearing schedule.

An example

An RGP may be prescribed for a specific optical or fitting need; its care must match that product.

A common mix-up

RGP and overnight orthokeratology are not interchangeable names.

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Sources & verification

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