What are RGP contact lenses?

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When it comes to contact lenses, most of us immediately think of the soft, flexible kind. But there’s another option that’s been quietly holding its ground for decades: rigid gas permeable (RGP) lenses, often simply known as hard lenses. These lenses may not be as well-known as their soft counterparts, but they offer unique benefits that are worth a closer look.

Unlike the old-school hard lenses made from PMMA, today’s RGP lenses are crafted from advanced materials like silicone and fluorosilicone acrylate, allowing much more oxygen to reach the eye, which is crucial for long-term eye health.

While soft lenses may dominate the shelves, RGPs still have a loyal following, especially among wearers who value sharp vision and long-lasting comfort.

So, if you're shopping for contact lenses online and weighing your options, understanding the key differences between soft and rigid lenses can help you make a smart, eye-healthy decision.

Who should use RGP lenses?

RGP lenses are a great fit for:

  • If you have astigmatism (where the cornea isn’t perfectly round)

  • If you have keratoconus (a condition where the cornea thins and bulges forward, giving the appearance of a 'cone')

  • If you have a high prescription (whereby other correction is possibly limiting the quality of their vision)

  • People who need visual stability for myopia, presbyopia or irregular corneal shapes


Consistency is key when it comes to RGPs. Their rigid nature requires adaptation and may cause initial discomfort, which subsides through frequent wear.

Types of rigid gas permeable lenses

There are several types of RGP lenses available, each designed to match specific visual needs:

  • Standard RGP: suited for general vision correction

  • Toric RGP: Designed with different curvatures to correct astigmatism

  • Multifocal RGP: Incorporating multiple zones of vision to correct presbyopia

  • Scleral lenses: Taking their names from where these lenses rest on the eye, (the sclera, the white part of the eye) these larger lenses create a 'fluid reservoir'. Ideal in correcting eyes with severe dryness and corneal abnormalities such as keratoconus.

  • Ortho-K lenses: worn overnight to gently reshape the cornea and temporarily correct mild to moderate myopia during the day


Your optometrist can help decide which type is most suitable based on your eye exam results.

Advantages of RGP contact lenses
  • Clearer vision due to a stable contact lens fitting

  • Better durability with proper care and handling

  • Reduced risk of eye infections compared to soft lenses

  • High oxygen transmission to support corneal health

  • Often more cost-effective long term despite higher upfront costs

  • Provide a greater tear exchange which helps lubricate the eye, provide nourishment and protect from irritants such as dust and bacteria


Disadvantages to consider
  • Longer adaptation period compared to soft lenses

  • Initial discomfort is common while adjusting to the rigid nature of these lenses. Feeling the edge of the lens against the eyelid is often reported

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  • Requires a consistent wearing schedule to aid adapting to the lenses and maintain comfort

  • Less frequently replaced, these lenses need to be carefully cleaned to reduce a build up of deposits

  • More prone to dislodging during sports or high-movement activities

RGP lenses vs soft contact lenses

FeatureRGP lensesSoft contact lenses
Comfort(initial)Requires adaptation (discomfort should ease)Little adaptation - little, if no discomfort
VisualclarityProvides sharper/clearer vision that is stableProvides good vision for most prescriptions
DurabilityLong-lasting (1 year or more)Short-term, usually 1 day to 1 month
Oxygen flowHigh oxygen transmissionDepends on material used (e.g. silicone hydrogel vs hydrogel lenses)
Cleaning andcareRequires daily cleaning and storageDaily contact lenses do not require cleaning
Tear exchangeEnhances tear flow for better tear movementReduced tear flow
LifestylesuitabilityIdeal for frequent wearIdeal for flexible wear
How to care for your RGP lenses

RGP lenses require daily maintenance but are easy to manage with an adopted regime:

  • Always wash and dry hands thoroughly before handling lenses


Consistent care helps prevent dry eyes, discomfort and the risk of eye infections

When to talk to your optometrist

Before switching to RGP lenses, your optometrist will:

  • Take measurements of the cornea and assess tear film quality

  • Identify the best lens material and design for your visual needs

  • Explain the adaptation period and wearing schedule

  • Discuss lens hygiene routines and review lens cases, cleaning kits, and other related options

  • Recommend follow-up appointments to assess fitting, vision and eye health


Complex conditions may need to be referred to for specialist opinion. Your optometrist may also suggest hybrid or scleral lenses if you need extra comfort or have complex corneal conditions.

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A fun fact about long-term benefits

Some studies suggest RGP lenses may help slow the progression of myopia in children. The rigid surface of the RGP may contribute to maintaining the corneal shape which is known to change with an increase in myopia. While more research is needed, RGPs not only provide visual correction, but the potential of long-term benefits in individuals with myopia.

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Ready to order contact lenses online?

If you’re exploring your options for online contact lenses and have complex vision needs like astigmatism, high prescriptions or irregular corneas, your optometrist may recommend rigid gas permeable (RGP) lenses. Known for their durability and ability to deliver clear, stable vision, RGPs can be a good fit for certain prescriptions with proper care and regular eye exams. While we don’t offer RGP lenses, many wearers with similar needs find soft contact lenses — especially toric or multifocal types — a more flexible and comfortable alternative available online.

Need help choosing the right option? Talk to your optometrist first, and if soft contact lenses are the right option for you then come back to Vision Direct when you're ready to buy soft contacts online with confidence.

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