Sharp Eye Pain: What Causes a Stabbing Pain in the Eye

Where the pain comes from

The cornea, the clear front window of the eye, has one of the highest densities of pain nerves in the body. That is why even a tiny scratch or eyelash feels sharp and intense. Pain from the surface usually comes with watering, a gritty feeling and blinking. Pain from deeper structures feels like aching, pressure or stabbing behind the eye, and is often worse with eye movement or bright light.

Surface causes of sharp eye pain

Corneal abrasion

A corneal abrasion is a scratch on the cornea from a fingernail, makeup brush, branch, contact lens or rubbing. It causes sharp pain, watering, light sensitivity and a feeling that something is in the eye. Most heal within 1 to 3 days with antibiotic drops.

Foreign body

Dust, sand, an eyelash or a metal fragment can lodge on the cornea or under the upper eyelid. Pain is sharp, worse with blinking. Metal from grinding can leave a rust ring and must be removed by a clinician. See foreign body in the eye.

Recurrent corneal erosion

After an abrasion, the surface can stick to the eyelid overnight and tear on waking, causing sudden sharp pain when you open your eyes in the morning. Lubricating ointment at night helps prevent it.

Dry eye

Dry eye causes burning, grittiness and occasional sharp stabs, worse with screens, wind, air conditioning and at the end of the day.

Contact lens problems

Sleeping in lenses, overwear, and torn or dirty lenses cause sharp pain and increase the risk of a corneal ulcer. Remove the lenses and do not put them back until the eye is checked.

Other surface causes

Ingrown eyelashes, a stye at the lash line, ultraviolet burns from welding or snow (very painful a few hours after exposure), and conjunctivitis, which usually causes more grittiness than sharp pain.

Deeper and serious causes

Keratitis and corneal ulcer

Keratitis, infection or inflammation of the cornea, causes sharp pain, redness, light sensitivity, discharge and blurred vision. Contact lens wearers are at highest risk. It can threaten sight and needs same-day treatment.

Acute angle-closure glaucoma

Acute glaucoma causes severe eye pain with redness, blurred vision, halos, headache, nausea and vomiting. Eye pressure rises sharply. It is an emergency.

Uveitis and scleritis

Uveitis (inflammation inside the eye) causes aching pain, redness around the cornea, light sensitivity and blurred vision. Scleritis causes a deep, severe, boring pain that can wake you at night, with a dark red eye. Both are linked to autoimmune diseases.

Optic neuritis

Optic neuritis is inflammation of the optic nerve. It causes pain behind one eye that is worse when moving the eye, with blurred or dim vision and washed-out colors over hours to days. It is often linked to multiple sclerosis.

Sharp pain behind the eye

• Cluster headache: excruciating stabbing pain behind or around one eye, lasting 15 minutes to 3 hours, with a watery red eye, runny nostril and restlessness. It occurs in bouts, often at the same time each day.
• Migraine: throbbing pain, often behind one eye, with nausea and light sensitivity.
• Primary stabbing headache ("ice-pick" headache): jabs of pain lasting seconds, often around the eye or temple. Harmless but unsettling.
• Trigeminal neuralgia: electric-shock pains in the face, sometimes near the eye, triggered by touch, chewing or wind.
• Sinusitis: pressure behind and between the eyes, worse bending forward, with nasal congestion.
• Shingles affecting the forehead nerve, which can involve the eye.

Sharp eye pain causes compared

What to do now

• Do not rub the eye.
• Rinse with clean water or sterile saline if you think something is in it. Pull the upper lid over the lower lid to dislodge particles under it.
• Remove contact lenses.
• Do not try to remove anything stuck on the colored part of the eye or embedded in it. Cover the eye loosely with a paper cup and get urgent care.
• Do not use redness-relief drops or leftover steroid drops.
• Over-the-counter pain relief following the label dose can help while you arrange care.

How doctors diagnose sharp eye pain

An eye doctor or ER clinician will check your vision, examine the eye with a slit lamp, use fluorescein dye to reveal scratches and ulcers, flip the eyelid to look for foreign bodies, measure eye pressure, and check pupil reactions and eye movements. MRI may be arranged for suspected optic neuritis.

Frequently asked questions

What causes sharp stabbing pain in the eye?

The most common causes are a corneal scratch, something in the eye, dry eye and contact lens problems. Deeper causes include keratitis, uveitis, acute glaucoma and optic neuritis. Stabbing pain behind the eye can come from cluster headache, ice-pick headache or trigeminal neuralgia.

Why do I get sharp pain in my eye that comes and goes?

Brief, recurring stabs of pain with normal vision are often due to dry eye or primary stabbing (ice-pick) headaches. Pain on waking can be recurrent corneal erosion. Attacks lasting 15 minutes to hours behind one eye, with watering, suggest cluster headache. See a doctor if episodes keep returning.

When is sharp eye pain an emergency?

Seek emergency care for eye pain after a chemical splash, a high-speed injury, or with sudden vision loss, or severe pain with redness, halos, headache and vomiting. Same-day care is needed for a painful red eye with light sensitivity, especially if you wear contact lenses.

What causes sharp pain behind the eye?

Common causes include migraine, cluster headache, sinusitis, and primary stabbing headache. Optic neuritis causes pain behind the eye that worsens with movement and blurs vision. Scleritis and glaucoma can also cause deep pain. New or severe pain behind the eye should be assessed.

How long does a scratched eye take to heal?

Most small corneal scratches heal within 24 to 72 hours. Antibiotic drops are usually prescribed to prevent infection. Do not wear contact lenses until it has healed and your doctor agrees. Larger or deeper abrasions take longer and need follow-up.