Scleral Lenses for Recurrent Corneal Erosions
Understanding Recurrent Corneal Erosions
Recurrent corneal erosion (RCE) occurs when the outer layer of your cornea (the epithelium) detaches from the layer beneath it. The epithelium normally anchors itself to the basement membrane, but defects in that adhesion cause it to peel away, often with no warning. According to a 2019 review, RCE arises from a defect in epithelial adhesion to the basement membrane (PMC, 2019).
Most episodes strike when you wake up or open your eyes after sleeping. Your eyelids stick to the loosened epithelium overnight, and the simple act of opening your eyes tears the surface layer away. The pain is sudden and intense.
You may experience severe, sharp eye pain that starts the moment you open your eyes in the morning. Your eye waters heavily, turns red, and becomes sensitive to light. Vision may blur in the affected eye until the surface heals.
- Sudden, sharp pain on waking or during the night
- Heavy tearing and eye redness
- Light sensitivity that makes it hard to keep your eyes open
- Blurred vision in the affected eye
Most recurrent erosions trace back to a previous corneal scratch or injury that did not heal with strong enough adhesion. Corneal dystrophies like epithelial basement membrane dystrophy (map-dot-fingerprint dystrophy) also weaken the bond between the epithelium and the layer beneath it. Some patients experience erosions without an identifiable trigger.
Eye rubbing, especially on waking, is a common trigger. Low humidity at night and sleeping with a fan blowing on your face can also dry the surface enough to worsen adhesion problems.
Contact your eye doctor the same day if you experience a new erosion episode, especially if the pain is severe, your vision drops, or you notice a white spot on your cornea. Repeated erosions can lead to infection or deeper corneal damage if left unmanaged. A white spot may indicate an ulcer forming at the erosion site.
Between episodes, regular monitoring helps your doctor track whether your adhesion is improving or whether you need a change in treatment strategy.
How Scleral Lenses Prevent Erosion Recurrence
Scleral lenses prevent your eyelids from making direct contact with the cornea during blinking. This removes the mechanical disruption of the fragile epithelium that perpetuates erosions (Contact Lens Spectrum, 2024). The lens creates a rigid dome over your cornea, so your eyelids glide across the smooth lens surface rather than pulling at a weakened epithelial layer.
This protection is especially valuable during sleep-related erosion triggers. While scleral lenses are not worn during sleep, they allow the cornea to rest in a protected, moist environment all day, which supports stronger adhesion repair over time.
You fill the scleral lens with preservative-free saline before insertion, creating a fluid reservoir that keeps your cornea continuously hydrated. A dry corneal surface is more prone to erosion, so the constant moisture helps the epithelium maintain its bond to the underlying tissue. High-Dk scleral lens materials (with an oxygen permeability of Dk 180) ensure enough oxygen reaches your cornea to support healthy healing (Contact Lens Spectrum, 2024).
The hydrated environment also reduces the inflammation that weakens epithelial adhesion over repeated erosion cycles.
A case report documented that a combined regimen of topical therapy, nighttime soft bandage lens, and daytime scleral lens wear managed RCE symptoms and rehabilitated vision for 5 years without complications (Contact Lens Spectrum, 2024). After a six-month trial of scleral lens wear in RCE patients, researchers documented a significant reduction in erosion frequency, improved visual acuity, and increased comfort (Contact Lens Spectrum, 2024).
Your eye doctor may recommend scleral lenses when first-line treatments like lubricating ointments, hypertonic saline drops, and bandage soft lenses have not prevented recurrences.
Treatment Options and Where Scleral Lenses Fit
Your eye doctor may start with lubricating ointment at bedtime, hypertonic saline drops (which draw excess water from the epithelium to improve adhesion), and preservative-free artificial tears during the day. A bandage soft contact lens worn at night can also protect the surface from your eyelid.
These treatments help many patients, but when erosions continue despite consistent use, scleral lenses offer the next level of protection.
Your doctor may recommend scleral lenses if you continue to have erosion episodes despite ointments, drops, and bandage lenses. The scleral lens provides daytime protection while a bandage lens or ointment covers nighttime. Together, these approaches protect your cornea around the clock.
The decision also depends on whether your erosions affect your vision or daily activities. If episodes are frequent enough to disrupt your work or quality of life, scleral lenses can reduce that impact while supporting long-term healing.
If scleral lens therapy and medical treatment do not prevent recurrences, your doctor may consider surgical procedures. Anterior stromal puncture creates tiny scars that anchor the epithelium. Phototherapeutic keratectomy (PTK) uses a laser to smooth the corneal surface and promote stronger adhesion. Epithelial debridement removes the loose tissue so a new, better-anchored layer can grow.
Scleral lenses can support recovery after these procedures by protecting the healing surface during the post-operative period.
Questions About Scleral Lenses for Recurrent Erosions
Scleral lenses are designed for daytime wear. Sleeping in them increases infection risk. Your doctor may recommend a separate nighttime strategy such as lubricating ointment or a bandage soft lens to protect your cornea while you sleep.
Duration varies by case. Some patients wear them for months while their cornea heals and builds stronger adhesion. Others use them long-term if their underlying condition (such as a corneal dystrophy) continues to weaken the epithelium. Your doctor reassesses at each follow-up visit.
Scleral lenses reduce erosion frequency and protect the cornea during healing, but they may not eliminate erosions in every patient. The goal is to break the cycle of repeated injury so your epithelium can develop stronger adhesion over time.
You can apply preservative-free rewetting drops over your scleral lenses during the day. Avoid preserved drops, as the preservatives can accumulate under the lens. Your doctor will specify which drops are safe to use with your lenses.
Remove the lens and contact your eye doctor the same day. An erosion during lens wear may indicate the lens fit needs adjustment or that your underlying condition has changed. Do not reinsert the lens until your doctor evaluates your eye.
Scleral lenses and bandage soft lenses serve different roles. Scleral lenses offer superior daytime protection and vision correction, while bandage lenses are better suited for overnight wear. Many RCE management plans use both: scleral lenses during the day and bandage lenses at night.
Break the Cycle of Recurrent Erosions
If recurrent corneal erosions disrupt your daily life despite standard treatments, ask your eye doctor whether scleral lenses can protect your cornea and reduce erosion episodes.