Recurrent Corneal Erosion: Why Your Eye May Hurt When You Wake Up

Your eye felt fine when you went to bed, but the moment you open it in the morning, you feel a sharp sting and it starts to water. If this keeps happening in the same eye, one possible cause is recurrent corneal erosion. When we evaluate morning eye pain at our Houston office, the timing is one of the most helpful clues.

Why Opening Your Eye Can Hurt

The cornea is the clear front surface of your eye. Its outermost layer normally stays firmly attached to the tissue beneath it. If a small patch is loosely attached, your eyelid can stick to it overnight. Opening your eye can lift that patch and expose sensitive nerve endings. Even a tiny erosion can hurt enough to make it hard to keep your eye open.

Sometimes the trouble starts with a scratch from a fingernail or a tree branch. The scratch may feel healed long before the first painful morning, so an injury from months or even years ago is worth mentioning. Some people also have a condition called epithelial basement membrane dystrophy, which makes it harder for the surface cells to stay attached.

What to Notice During an Episode

If the pain has eased by the time we see you, it helps to know what you noticed during the episode.

• Whether the pain starts the instant you open your eye or wakes you during the night

• Which eye hurts and how long it takes to feel comfortable again

• Whether light bothers you, your eye waters, or your vision turns blurry

Seek urgent eye care for severe pain, worsening redness, or a sudden change in vision. A corneal infection can cause similar symptoms and needs prompt treatment.

How We Treat Recurrent Corneal Erosion

We examine the cornea under magnification and may use a dye called fluorescein to highlight a break in its surface. We also look for signs of dry eye, which can increase friction between the lid and the cornea.

If we find an erosion, treatment depends on whether the surface is still open or has healed. An open area may need a prescription antibiotic to reduce the risk of infection. Once it heals, we may recommend lubricating drops during the day and an eye ointment at bedtime to help the lid glide over the cornea when you wake up.

If sharp eye pain keeps coming back when you wake up, call Houston Dry Eye Clinic in Houston, TX, at (713) 664-4760 to schedule a corneal evaluation.