Scleral Lens Insertion with a Dental Ring

For many scleral lens wearers in Las Vegas, learning to insert lenses comfortably is one of the first challenges after a fitting. While most patients master the standard plunger technique, some find it difficult to balance the lens on a plunger while also controlling their eyelids. A dental ring, also called an orthodontic band or O-ring, offers a simple and affordable alternative that can make scleral lens insertion much easier.

What Is the Dental Ring Insertion Method?

A dental ring (orthodontic band) or O-ring is a small, flexible ring that fits over the tip of your index finger. When you place your scleral lens on top of the ring, it creates a stable platform that holds the lens securely while you apply it to your eye. This method is especially helpful for patients who prefer using a single finger to balance their lens, because it frees the remaining fingers on that hand to hold the lower eyelid open.

How to Insert a Scleral Lens with a Dental Ring

• Wash your hands thoroughly with soap and water, then dry them with a lint-free towel.
• Place the O-ring or orthodontic band on the tip of your index finger.
• Set your scleral lens on top of the ring with the bowl facing up.
• Fill the lens bowl completely with preservative-free saline solution. Overfilling slightly helps prevent air bubbles from getting trapped under the lens.
• Use your other hand to hold your upper eyelid open firmly against the brow bone.
• Use the free fingers of your lens hand to pull down the lower eyelid.
• Look straight into the center of the lens and bring it steadily toward your eye until it makes contact.
• Release your lower lid first, then your upper lid.

Tips for Avoiding Air Bubbles

Air bubbles trapped beneath a scleral lens are one of the most common insertion issues. To reduce the risk, make sure you fill the lens to the brim with saline and tilt your face downward so you are looking straight down into the lens as you apply it. If you notice a large bubble after insertion, remove the lens, refill with fresh preservative-free saline, and try again. Small bubbles can sometimes work their way out on their own, but a persistent large bubble may cause discomfort or blurry vision and should be addressed by removing and reinserting the lens.

Where to Find Dental Rings and O-Rings

O-rings are available at most hardware stores and typically cost just a few cents each. Orthodontic bands can be purchased online in packs of 100 for around seven dollars. Both options are inexpensive and easy to keep on hand as backups.

When to Contact Your Eye Doctor

If you continue to have difficulty inserting your scleral lenses despite trying different techniques, schedule a follow-up appointment. Persistent insertion problems can sometimes indicate a fit issue that your doctor can address. If you experience sudden pain, redness, or vision changes after inserting your lenses, remove the lens and contact your eye care provider right away.

At Insight Vision Optometry, Las Vegas, our scleral lens specialists Dr. Stephanie Woo, OD, FAAO, FSLS, Dr. Nathan Schramm, OD, FSLS, FBCLA, and Dr. Thanh Mai, OD, FSLS work with every patient to find the insertion technique that works best for them. Call us at 702-747-4070 to schedule a scleral lens consultation.