Rigid Gas Permeable (RGP) contact lenses are a recognised safe form of vision correction.1 However, incorrect care of contact lenses can increase the risk of eye infections and corneal ulcers. Risk factors for contact lens related corneal infection include improper lens cleaning and disinfection, poor hygiene practices and smoking.2 Following your optometrist's hygiene regime, along with regular reviews, will minimise this risk.
Always thoroughly wash your hands with an antibacterial-based hand wash and dry them with a clean lint-free towel before handling, removing or inserting your lenses. Make sure to clean all parts of your hands, including between the fingers and dry thoroughly.
Always wash and rinse your hands thoroughly and dry them with a lint-free towel/tissue before handling contact lenses. All traces of soap, perfumes, hair-spray, creams and lotions should be removed from your hands and around your eyes.
Step 1. Remove lenses from the cleaning solution case and rinse with saline. If using hydrogen peroxide solution a minimum soaking time of 6 hours is required for the acid to neutralise to saline.
Step 2. Place 1-2 drops of a lubricating eye drop and fill the back of the lens. Place the lens on your index finger and inset directly onto the centre (coloured part) of your eye in a face-down position, parallel to the floor. To save confusion, it’s a good idea to always insert the right lens first.
Step 3. If you happen to drop your lens, use saline solution to rinse. Place the lens in the palm of your hand and rinse thoroughly for 5 seconds.
Step 4. Dry and wipe out your lens case with a tissue. Leave the case lid off to air dry while wearing your lenses.
NORMAL occurrences on insertion: Occasionally a lens may become dislodged within your eye. This may be uncomfortable but will not do any harm.
ABNORMAL occurrences on insertion: If on insertion you experience stinging, burning or pain, remove the lens, rinse and re-insert. If pain persists once the lenses have been removed, or if the lens feels as though it is stuck to the eye, contact your optometrist immediately.
Method 1 – Manual Removal. Using your middle fingers, open the lids wider than the lens diameter. Apply pressure to the lid margins, pushing in together to move your lids under the lens and lever it out of the eye
Method 2 – Suction Removal. Using your middle fingers, open the eyelids wider than the lens diameter. With the suction tool between your index finger and thumb, align the suction cup so it is positioned in front of and parallel to the lens. When the suction cup touches the lens, apply pressure gently to adhere the lens to the cup and remove the lens from your eye. After removal from the eye, carefully slide the lens sideways off the suction tool and it will come off easily
CAPTION: Different styles of suction tool.
Always clean your lenses after wear. An effective cleaning process is vital to ensure comfortable, hygienic and infection-free contact lens wear. With correct cleaning, contact lenses will feel better on your eyes, allow better eye health and vision, and dramatically reduce bacteria and other contaminants. There are multiple types of rigid lens cleaning solutions: Peroxide based systems like AO Sept and multipurpose rigid lens solutions like Menicare and Boston Simplus. There are several steps involved in cleaning and storing Ortho-K lenses that vary depending on the system.
These solutions work by having your contact lenses immersed and sterilised in 3% hydrogen peroxide. Over the course of a 6 hour period the catalyst in the case converts the hydrogen peroxide into water and oxygen gas. This cleaning solution has the advantage that when your lenses are removed from the case they require no rinsing as they are covered only in sterile, non-preserved water. They also generally require no rubbing step, which decreases the risk of accidental breakage. The case can be left to air dry when not in use, and should be replaced with each new bottle of solution. AO Sept now had the addition of Hydraglyde, an ingredient which improves the wettability of your contact lenses, making them more useful for scleral patients with long day-wear times.
To clean your lenses fill the case up to the line, place your lenses in the correct cage-holder. Then submerge the case and screw closed. Take care when transporting the case as sometimes the small gas-release hole can leak solution.
Care should be taken not to get the un-neutralised peroxide in your eyes as this will sting painfully. If this occurs rinse thoroughly with water and contact your optometrist if the pain persists or your vision is affected. Find AOSept at our shop here.
To clean and maintain the wettability of your lenses use intensive cleaner, such as Menicon Progent. Place the lenses into the contact lens case holders. Open vial A and B by twisting the cap and pour the contents into the contact lens case. Replace the lid and tighten. Leave the lenses in the solution for 30 minutes, then remove and rinse thoroughly with saline. Lenses can now be worn or soaked in your daily cleaner. (please note that this product may not be available in all countries, ask your practitioner).
Rigid contact lenses are made of a strong polymer which resists damage in normal wearing circumstances. It is very rare for a lens to break in your eye unless something hits your eye or your removal technique is incorrect/very forceful. The solutions you use to clean your lenses will not weaken or degrade them ‒ not even the powerful Progent fortnightly deep cleaner. However, they can still break if mishandled. There are some tricks you can learn to minimise this chance.
Habits that may cause a lens to break include:
It is very rare for a lens to break in your eye unless something hits your eye or your removal technique is incorrect/very forceful. The solutions you use to clean your lenses will not weaken or degrade them ‒ not even the powerful Progent fortnightly deep cleaner.
We understand that when you are learning how to use your lenses you may be inadvertently forceful during insertion, removal or cleaning. Because of this we offer a 1 month manufacturer’s replacement warranty on accidental breakages. Outside of this period, your lens is not covered by a warranty and the lens will need to be replaced at your cost if damaged or lost. If you break a lens within 18 months of its original purchase/fit then we are happy to offer 50% off the price. Outside of this 18 month period the lens will be full-price.
Normally a lens will take less than one week to arrive from the lab when ordered. If you are very dependent on the lens, we will of course ask our lens company to manufacture it as soon as possible. Because of the inevitable waiting time, we encourage all rigid lens wearers to have a spare set of lenses available for a situation where a lens is lost or broken. We also offer 50% off the full price for a spare lens if purchased within 12 months of the original.
If you do lose or damage a lens, please don’t fret, just give our friendly team a call and we will arrange a replacement as quickly as we can.
Do not use your rigid gas permeable lenses in the following cases: