Scleral contact lenses have revolutionized vision correction for people with irregular corneas or specific ocular conditions. Unlike traditional contact lenses that rest directly on the cornea, scleral lenses vault over it and rest on the sclera (the white part of the eye), forming a smooth optical surface that improves both vision and comfort. However, mastering how to insert, remove, and clean scleral contact lenses is vital to ensure both effectiveness and eye safety.
What Are Scleral Lenses and How Do They Work?
Scleral lenses are larger than traditional lenses, typically ranging in diameter from 14mm to 26mm. Their larger size allows them to rest comfortably on the sclera without touching the sensitive cornea. This design offers several benefits, including enhanced visual correction, reduced irritation, and improved lens stability.
That said, reaping these benefits requires proper control over the insertion and removal process. Here’s how to do it right.
Proper Insertion of Scleral Lenses
Correct insertion of scleral lenses is essential for optimal fit and performance. While every patient is unique and should follow their optometrist’s specific instructions, here are general guidelines:
- Hygiene First: Before handling your lenses, wash your hands thoroughly with mild soap and water. Dry them with a lint-free towel to avoid introducing particles to the lens.
- Prepare the Lens: After it has been cleaned the night before, place the lens on a clean, flat surface. Inspect it for any debris or cloudiness, and rinse it with sterile saline solution if needed.
- Fill with Saline: Use sterile, preservative-free saline solution recommended by your eye care professional to fill the bowl of the lens. Avoid using tap water or homemade saline, as they can introduce harmful bacteria or contaminants.
- Check for Air Bubbles: Look carefully for air bubbles in the solution. Bubbles can cause discomfort and reduce visual clarity. Gently tap the edge of the lens to release trapped air.
- Verify Orientation: Some scleral lenses have laser markings to indicate the correct top/bottom position. Follow your optometrist’s guidance on how to align these marks properly before inserting.
- Insert Smoothly: With your eye wide open, gently insert the lens directly onto the eye. Because of their large size, if the lens touches the eyelid before settling on the eye, the saline may spill and introduce bubbles.
Removing Scleral Lenses Safely
Removing scleral or mini-scleral lenses requires patience and precision to avoid damaging the lenses or irritating the eye. Follow these steps:
- Clean Hands: Just like with insertion, begin by thoroughly washing and drying your hands.
- Find a Safe Position: Sit or stand in a well-lit area in front of a mirror. Always remove lenses over a soft surface or towel in case they drop.
- Use a Suction Tool: Most users find a specialized suction tool or plunger to be helpful. Position the tool near the center of the lens and apply gentle pressure to create suction.
- Break the Seal: Tilt your head slightly downward and look upward to help break the seal between the lens and eye. Use your other hand to hold the eyelids open.
- Remove Gently: Once the seal is broken, use steady and gentle pressure to pull the lens away from the eye. Avoid forcing it, which can cause discomfort or injury.
- Clean and Store: After removal, clean the lens immediately using the recommended solution, then store it in a clean lens case filled with fresh solution.
Maintenance and Cleaning – Best Practices
To ensure long-term comfort and lens integrity, consistent cleaning and disinfection are essential. Here’s how:
- Wash Hands Again: Always begin with clean hands.
- Inspect the Lens: Check both sides of the lens for dirt or deposits.
- Apply Cleaning Solution: Place the lens in your palm and apply a few drops of the multi-purpose cleaning solution recommended by your optometrist.
- Rub Gently (if instructed): Using your fingertip, rub the lens gently in a circular motion for 20–30 seconds. In some cases, your optometrist may instruct you to skip this step and use a specific soak-only product.
- Rinse Thoroughly: After rubbing, rinse the lens with sterile saline to remove any remaining debris and cleaning solution.
- Disinfect Properly: Place the lens in a clean case filled with fresh disinfecting solution and allow it to soak for the amount of time specified by your eye care provider.
Nighttime Storage and Cautions
When not in use, scleral lenses should be stored in a clean lens case filled with fresh solution. Never use tap water or homemade saline mixtures, as they may compromise both the lens and your eye health.
If your lenses are approved for extended wear, follow your provider’s specific instructions for overnight use, cleaning, and disinfection protocols.
Final Thoughts: Confidence Comes with Practice
With the right technique and a bit of patience, scleral lens wear becomes second nature. Follow your optometrist’s personalized instructions and maintain consistent cleaning routines to enjoy sharp, comfortable vision every day. Proper care is key to maximizing both the safety and the effectiveness of these remarkable lenses.