Scleral contact lenses are recognised as a safe form of vision correction. However, incorrect care of scleral contact lenses and solutions can increase the risk for eye infections and corneal ulcers. Risk factors for acquiring an eye infection include improper lens cleaning and disinfection, poor hygiene practices and smoking. Following your practitioner's hygiene regime, along with regular reviews, will minimise this risk.
Before handling, removing or inserting your lenses:
Always thoroughly wash your hands with an antibacterial or alcohol-based hand wash and dry them with a clean towel. Make sure to wash all parts of your hands including between the fingers and dry thoroughly.
Your lenses should never come into contact with tap or bottled water. Water contains microorganisms like Acanthamoeba that can cause sight-threatening eye infections.
Remove lens either manually or with the suction cup.
First, ensure you break the seal of your scleral lens. Do this by pressing firmly with your finger on your bottom eyelid just below the lower edge of the lens, then push upwards. This will break the seal of the lens creating a bubble under the lens and allow it to move on your eye, making removal easier. Creating a bubble will blur your vision.
Method 1- Manual removal
Method 2- Suction tool
Place the lenses in the supplied contact lens holder and proceed with the cleaning and disinfection process as instructed by your optometrist.
Place lenses in the supplied basket holder and fill the case with the hydrogen peroxide solution. If required add the neutralising tablet and replace the lid and tighten. It is imperative the lenses are not removed before the solution has had six hours to neutralise.
As directed by your optometrist, some patients require a daily two-step lens cleaning system. Hold the lens in the palm of your hand and instil one drop of the daily lens cleaner into the back of the lens. Gently rub the lens until the liquid foams like soap. Then rinse off with saline and place the lens into the conditioning solution to store overnight.
To remove protein build up use a monthly intensive cleaner. 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 lids of the contact lens case and tighten. Leave the lenses in the solution for 30 minutes. Remove lenses and rinse thoroughly with Saline. Lenses can now be worn or soaked in your daily cleaner.
Tip: The first thing you will notice about your lenses is they have different colours. Usually, the right lens is clear and the left lens has a blue tint. The different colours will ensure you don’t get the lenses confused. The way to remember is the second letter of blue is L for left!
Scleral lenses are manufactured from a durable gas permeable polymer which resists wear and tear during normal lens wearing circumstances. However, it is still important to handle them carefully.
Habits that may cause a lens to break include;
Remove your scleral lenses from the cleaning solution case and rinse with saline. If you are using a hydrogen peroxide solution, you can only remove the lenses after a minimum soaking time of six hours.
Either place the scleral contact lens between the middle, forefinger and thumb (known as the tripod method) or secure your lens to a suction tool.
Half fill the bowl of the lens with a preservative-free saline solution to prevent air bubbles between your eye and the lens. Insert the scleral lens directly onto the centre of your eye in a face-down position. To save confusion, it’s a good idea always to insert the right lens first.
If you happen to drop your scleral lens, use saline solution to rinse the lens clean. To do this place the lens in the palm of your hand and thoroughly rinse for five seconds.
Dry and wipe out your lens case with a tissue. Leave the case lid off to air dry while wearing your lenses.
During the first few weeks of wear, it is not unusual to have lens fogging due to an accumulation of lipid and mucus behind the lens. The lens fogging will improve over time. If a lens becomes foggy during the day, remove the scleral lens, rinse and re-insert back into the eye. Mix preservative free lubricating eye drops with the saline insertion solution to help reduce persistent fogging.
If on insertion you experience stinging, burning or slight pain, remove the lens, rinse and re-insert. If the problem persists, remove the lens and see your optometrist at your earliest convenience.
Remember your eye must;