SYNTHETIC DEMONSTRATION — no real student or patient. Not a medical device.

eye-vision

Corneal Abrasion (Scratched Eye): Symptoms and Treatment

A corneal abrasion — a scratch on the eye's clear front surface — causes sharp pain, tearing, and light sensitivity. Small abrasions from dust, a fingernail, or a contact lens typically heal within one to three days. Rinse with clean water or saline, avoid rubbing, remove contact lenses, and see an eye doctor if pain is severe, vision is affected, or symptoms worsen after 24–48 hours.

Talk to a clinician

Gale can match you with a licensed clinician for a visit.

Find care →

What causes a corneal abrasion?

The cornea — the clear, dome-shaped surface at the front of the eye — is richly supplied with nerve endings, which is why even small scratches produce intense, immediate pain. Common causes include:

  • A fingernail, tree branch, or paper edge contacting the eye
  • Dust, sand, or a small particle under the eyelid
  • A contact lens that is damaged, worn too long, or inserted with debris underneath
  • Rubbing the eye vigorously when a foreign body is present
  • Dryness that causes the corneal surface to adhere to the upper eyelid overnight (waking with acute pain)

Contact lens wearers are at higher risk because lenses can introduce foreign material and abrade the surface during insertion or removal. Contact-lens-related abrasions also carry a higher risk of bacterial infection, including with *Pseudomonas aeruginosa*, and should be evaluated promptly 1.

What are the symptoms?

Symptoms begin quickly and can be quite distressing:

  • Sharp or aching eye pain — often worsening with blinking as the eyelid moves over the damaged surface
  • Foreign body sensation — a persistent feeling that something is in the eye, even after the cause is gone
  • Tearing — reflex watering is the eye's protective response
  • Photophobia — sensitivity or pain in response to light
  • Redness
  • Blurred vision — particularly if the scratch is in or near the visual center of the cornea

Symptoms often persist for hours to a day or two even after the source is removed, because exposed nerve endings remain sensitized while the epithelium (the surface cell layer) heals 12.

What should I do immediately?

1. Do not rub the eye — rubbing enlarges the abrasion and introduces bacteria 2. Rinse with clean water or preservative-free saline — helps remove any remaining debris 3. Remove contact lenses if you are wearing them — do not re-insert until the eye is fully healed and cleared by your provider 4. Do not try to remove an embedded object — if something appears stuck in the eye, cover the eye loosely with a clean cloth and go to the ER 5. Avoid patching — routine eye patching is not recommended for simple abrasions; it does not speed healing and may reduce oxygen delivery to the cornea 2 6. Preservative-free artificial tears may offer comfort while you arrange evaluation

When does a scratched eye need medical evaluation?

You should be evaluated by an eye care provider if:

  • Pain is severe or not improving after a few hours
  • Vision is significantly blurred
  • You cannot fully open the eye
  • The abrasion was caused by plant matter, a fingernail, or a contact lens — plant material can introduce fungi, and contact-lens abrasions carry Pseudomonas risk 1
  • A foreign body may still be in the eye
  • There is discharge suggesting infection
  • Symptoms worsen after 24 to 48 hours rather than improving

An ophthalmologist or optometrist will examine the eye using a slit lamp and fluorescein dye to visualize the abrasion, assess its size and location, and prescribe antibiotic drops or ointment when indicated. Regarding antibiotic necessity: a 2022 Cochrane systematic review found that evidence for topical antibiotic prophylaxis in simple abrasions remains low-certainty, though antibiotics are still typically used for contact-lens-related abrasions because of infection risk 3.

How long does a corneal abrasion take to heal?

The corneal epithelium is among the fastest-healing tissues in the body. Small abrasions often resolve within 24 to 48 hours; larger ones may take up to three to four days. Pain typically decreases significantly within the first day as the surface regenerates 1.

If pain, redness, or light sensitivity is worsening after two days rather than improving, return for re-evaluation — this pattern can indicate developing corneal infection (keratitis), which requires more intensive treatment 1. Do not return to contact lens wear until your eye care provider confirms the abrasion is fully healed.

Common questions

Can I treat a corneal abrasion at home?

Very small, mild abrasions in non-contact-lens-wearers may improve with rinsing, artificial tears, and rest. However, because the symptoms of a corneal abrasion overlap with those of a corneal infection, evaluation by an eye care provider is generally recommended — especially if you wear contacts or the cause was organic material like a plant or fingernail.

Should I patch my eye for a corneal abrasion?

No — routine eye patching for simple corneal abrasions is no longer recommended. Studies have not shown that patching speeds healing, and it may reduce oxygen delivery to the cornea. Your provider will advise if there is a specific clinical reason to patch in your situation.

Are contact-lens-related abrasions treated differently?

Yes. Contact-lens-related abrasions are treated with antibiotics that cover Pseudomonas aeruginosa, a bacterium that can cause rapid, vision-threatening corneal infections in contact lens wearers. Antibiotic selection for non-contact-lens abrasions may differ based on the likely organisms involved.

Talk to a clinician

Gale can match you with a licensed clinician for a visit.

Find care →

See an eye care provider urgently if:

  • —Severe pain that is not improving after a few hours
  • —Significant vision loss or blurring
  • —Suspected foreign body still in the eye — do not try to remove it yourself
  • —Abrasion caused by plant material, a fingernail, or a contact lens
  • —Worsening redness, photophobia, or discharge after 24–48 hours (possible corneal infection)

Go to an emergency room or urgent eye clinic if you suspect an embedded foreign object, or if symptoms are rapidly worsening. A white spot on the cornea is an emergency.

This article is for general educational purposes. Corneal injuries range from minor to vision-threatening — when in doubt, seek evaluation from an eye care professional the same day.

References

  1. 1.American Academy of Ophthalmology (2024). Corneal Abrasion and Erosion. American Academy of Ophthalmology EyeSmart Patient Education. link ✓Symptoms of corneal abrasion, healing timeline (small abrasions 1–2 days, larger up to a week), slit-lamp fluorescein diagnosis, and when to seek ophthalmology evaluation
  2. 2.Cheung AY, Choi DS, Ahmad S, Amescua G, Jhanji V, Lin A, Mian SI, Rhee MK, Viriya ET, Mah FS, Varu DM; American Academy of Ophthalmology Preferred Practice Pattern Cornea/External Disease Panel (2024). Conjunctivitis Preferred Practice Pattern. Ophthalmology. doi:10.1016/j.ophtha.2023.12.021 ✓Patching not recommended for routine corneal abrasions; antibiotic coverage in contact-lens-associated ocular surface injury; indications for urgent evaluation
  3. 3.Algarni AM, Guyatt GH, Turner A, Alamri S (2022). Antibiotic prophylaxis for corneal abrasion. Cochrane Database of Systematic Reviews. doi:10.1002/14651858.CD014617.pub2 ✓Low-certainty evidence that topical antibiotic prophylaxis prevents infection or speeds epithelial healing in simple corneal abrasions; evidence insufficient to support one antibiotic regimen over another

3 sources, numbered by first appearance. General health information, not medical advice — synthetic demonstration content.