Some patients describe it as a paper cut on the eye. They wake up, open their eyes, and feel a sudden, sharp pain, followed by tearing, blur and light sensitivity that may ease over the next hour. It happens again a few days or weeks later. This pattern is classic for recurrent corneal erosion, and it often flares in winter when heaters dry the bedroom air.
What is going on
EyeWiki, the American Academy of Ophthalmology’s clinical encyclopedia, describes recurrent corneal erosion (RCE) as a common condition caused by poor adhesion of the cornea’s surface layer (the epithelium) to the tissue beneath it. Overnight, the eye surface dries and the eyelid can stick to the loose surface cells. When you open your eyes, the lid pulls those cells away.
Common causes
- A previous scratch. EyeWiki reports that trauma is the most common cause, with 45% to 64% of cases linked to an earlier abrasion, often from a fingernail, paper or branch.
- Corneal dystrophies, especially epithelial basement membrane dystrophy, the second most common cause.
- Other contributors include eyelid oil gland problems, diabetes, ocular rosacea, prior corneal infection, dry eye and eyelids that do not close fully during sleep.
Symptoms
Pain, a foreign body sensation, redness, tearing, blurred vision and light sensitivity, typically on awakening.
Treatment
EyeWiki describes a step-by-step approach:
- Lubrication. Preservative-free artificial tears during the day and a lubricating ointment at bedtime keep the surface moist overnight. Many patients continue nightly ointment for months.
- Treating contributing conditions such as eyelid inflammation.
- Bandage contact lenses and other medicines during a flare, as directed by your doctor.
- Office procedures for persistent cases, which can help the surface layer reattach more firmly.
Habits that help in winter
- Run a humidifier in the bedroom and avoid a fan or heater vent blowing at your face.
- When you wake up, keep your eyes closed a moment and blink gently before opening them wide, and use a drop first if your doctor recommends it.
- Avoid rubbing your eyes.
Hikers who scratched an eye on a branch may be at higher risk; this Agoura Hills eye health blog covers trail-day eye concerns.
Recurrent erosion is very treatable, but it rarely goes away on its own if the cause is not addressed. If the morning pain keeps coming back, have the cornea examined.
Source: Recurrent Corneal Erosion (EyeWiki, American Academy of Ophthalmology). This article is an educational summary written by Khanna Vision Institute and is not a substitute for medical advice.
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