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What are hard contact lenses? (Updated)

Updated: January 14, 2026

Hard contact lenses usually refer to rigid gas permeable (RGP or GP) lenses, which are firm, oxygen-permeable contacts that hold their shape on your eye for clear, crisp vision. Because they keep a stable shape, they can be especially helpful for people who need sharper correction for things like astigmatism. They do take an adjustment period, but many wearers like them for their durability and long term performance when properly fitted.

Key Facts:

  • Most “hard contacts” today are RGP lenses, and older non-gas-permeable hard lenses are rarely used.
  • Because they keep a stable shape, RGP lenses often provide sharp vision and can help in cases like astigmatism or keratoconus.
  • They are durable and tend to resist deposits better than soft lenses, but they may take days to weeks to get used to.
  • RGP lens care systems can be different from soft lens systems, so use solutions labeled for RGP lenses and follow your provider’s instructions.
  • You still need a contact lens fitting and a current contact lens prescription to wear and order them safely.

Hard contact lenses, most commonly RGP lenses, are firm and long-lasting contacts that can deliver crisp vision when properly fitted and cared for.

Disclaimer: This information is for general informational purposes only and is not a substitute for professional advice, diagnosis, or treatment.

References:

About Contact Lens Types. Centers for Disease Control and Prevention (CDC). https://www.cdc.gov/contact-lenses/about/about-contact-lens-types.html. Updated May 27, 2025.

Types of Contact Lenses. U.S. Food and Drug Administration (FDA). https://www.fda.gov/medical-devices/contact-lenses/types-contact-lenses.  January 16, 2018.

Contact Lenses for Vision Correction. American Academy of Ophthalmology (AAO). https://www.aao.org/eye-health/glasses-contacts/contact-lens-102. Updated July 16, 2025.