Is exposure keratopathy just dry eye?

It overlaps with dry eye, but the main problem is poor lid coverage. The cornea needs protection.

Can taping the eyelid help?

Sometimes. Ask your doctor to show a safe method. Poor taping can scratch the eye.

When is exposure keratopathy urgent?

Urgent signs include severe pain, light sensitivity, a white corneal spot, sudden blur, or inability to close the eye with worsening pain.

Can surgery fix exposure keratopathy?

Surgery can help selected patients by improving eyelid closure or position. The cause guides the choice.

Condition

Exposure Keratopathy

Also known as Exposure Keratitis, Lagophthalmos Keratopathy, Corneal Exposure, Incomplete Eyelid Closure, Dry Cornea from Eye Exposure

Updated May 16, 2026·For educational purposes only. Not a substitute for medical advice. See our terms.

Bottom Line

Exposure keratopathy happens when the eyelids do not protect the cornea well enough. The exposed cornea can dry out, break down, and scar.

Exposure keratopathy means the cornea is drying or injured because it is not covered well. A common cause is lagophthalmos, which means the eyelids do not fully close ¹.

Risk is higher when blinking is weak, the eye bulges forward, the lower lid sags, or a person is sedated and cannot blink normally. Critically ill patients can develop exposure keratopathy for these reasons ².

Treatment protects the cornea with lubrication, moisture, taping, contact lenses, or eyelid procedures. Upper eyelid loading can reduce exposure symptoms in selected lagophthalmos patients ¹.

Symptoms

Symptoms often come from drying and friction:

Morning burning. The eye may dry overnight.
Redness and watering. Dryness can trigger reflex tears.
Gritty feeling. The surface can become rough.
Blurry vision. A dry or damaged cornea bends light poorly.
Pain or light sensitivity. These can mean the cornea is injured.

Lagophthalmos can lead to exposure keratopathy because eyelid closure protects the cornea ¹.

Causes

Common causes include:

Facial nerve weakness. Bell's palsy can weaken blinking.
Thyroid eye disease. Bulging eyes can expose more cornea.
Eyelid surgery or trauma. The lids may not close fully.
Nocturnal lagophthalmos. The eyes stay partly open during sleep.
Critical illness. Sedation and poor blinking raise risk.

A systematic review in critically ill patients found exposure keratopathy was linked with lagophthalmos, chemosis, low blink rate, and ventilation ².

Treatment

Treatment protects the cornea while the cause is addressed:

Preservative-free tears. These add moisture during the day.
Ointment. This lasts longer during sleep.
Eyelid taping or moisture chamber. These reduce overnight exposure.
Bandage or scleral contact lens. These may protect selected eyes.
Eyelid procedure. Surgery may help when closure is poor.

Oculoplastic procedures can protect the eye surface when drops and ointment are not enough ⁴.

Common Questions About Exposure Keratopathy

Yes. This is nocturnal lagophthalmos. It can dry the cornea overnight.

Next Steps

1Use preservative-free tears and nighttime ointment if your doctor recommends them.
2Ask someone to check whether your eyelids stay open during sleep.
3Book an eye exam if morning burning, blur, or redness keeps returning.
4Ask whether a moisture chamber, taping, lens, or eyelid treatment is safe for you.
5Seek urgent care for severe pain, sudden vision loss, injury, contact lens pain, or a white corneal spot.

Find specialists for Exposure Keratopathy

Board-certified ophthalmologists who treat Exposure Keratopathy.

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