Scratched Cornea: Everything You Need to Know About Corneal Abrasions

Scratched Cornea: Everything You Need to Know About Corneal Abrasions

Hey! Did you scratch your eye just now, even rinsed it with water and still did not feel relieved? If you’re telling yourself that it would get better by morning, without doing anything, you’re wrong! A scratched eye may seem like one of those small, forgettable discomforts, but it could be more than just a scratch! What most people don't realize is that a scratched eye or corneal abrasion, left untreated or poorly managed, can open the door to serious complications. ¹ You may experience bacterial infections, corneal ulcers, or even lasting damage to your vision.

The problem isn't just the injury. It's the assumption that it's too minor to matter.

In this blog, we break down what a corneal abrasion actually is, how to recognise it, and the steps that make the difference between a quick recovery and a preventable complication.

What Is Corneal Abrasion?

A corneal abrasion is a scratch or injury to the surface of the cornea (the clear, dome-shaped layer that covers the front of the eye). The outermost layer of the cornea is called the epithelium, which acts as a protective barrier against dust, germs, and other irritants. The cornea consists of five distinct layers, and a corneal abrasion typically affects only the superficial epithelial layer. ¹

While most corneal abrasions return to a normal state quickly with appropriate care, they should not be ignored. If left untreated, the injury may become infected and potentially lead to more serious complications that can affect vision. ¹

What Are The Symptoms Of Corneal Abrasion?

Common signs and symptoms of a corneal abrasion may include: ¹, ², ³

• Eye pain or discomfort
• A sensation that something is stuck in the eye
• Excessive tearing or watery eyes
• Blurred or reduced vision
• Redness in the eye
• Increased sensitivity to light (photophobia)
• Swelling of the eye or eyelids

What Are The Causes Of Corneal Abrasions?

A corneal abrasion can occur when something accidentally enters the eye while you are working with tools or equipment. Common culprits include dust, dirt, sand, small plant particles, or small fragments of wood or metal. Even everyday items like makeup brushes, applicators, or your own fingernails can cause a scratch if they come into contact with the eye. ¹

Wearing contact lenses can also increase the risk of a corneal abrasion, especially if: ¹

• You wear lenses when your eyes are dry
• The lenses do not fit properly
• You apply too much force while inserting or removing them

Risk Factors for Corneal Abrasion

Several factors can increase the likelihood of developing a corneal abrasion. You may be at higher risk if you: ¹

• Work around eye hazards, such as grinding machines, sawmills, or other industrial equipment.
• Perform outdoor activities like landscaping without wearing protective eyewear.
• Participate in sports that may result in eye injuries.
• Wear contact lenses, especially if they are used improperly.
• Have dry eyes.
• Frequently rub your eyes or rub them too forcefully.

Possible Complications

In most cases, corneal abrasions are minor. However, deeper or larger scratches may lead to complications such as: ¹

• Keratitis, an inflammation of the cornea
• Corneal ulcers, which are open sores on the cornea
• Iritis, inflammation of the iris (the colored part of the eye surrounding the pupil)
• Recurrent corneal erosion syndrome, a condition where the outer layer of the cornea repeatedly breaks down, causing recurring episodes of eye pain and blurred or fluctuating vision.

How To Diagnose Corneal Abrasion?

To diagnose a corneal abrasion, your healthcare provider will begin by asking about your symptoms and medical history. They may also ask what you were doing when the eye discomfort first started, as this can help identify the cause of the injury. ¹, ⁴

A detailed eye examination is then performed. This often includes a slit-lamp exam, where a special microscope is used to closely examine the structures of the eye. In some cases, the provider may gently turn the eyelid inside out to check for any foreign particles trapped underneath. ¹, ⁴

To make the abrasion easier to see, a special yellow dye called fluorescein may be placed in the eye. This dye highlights any breaks or scratches on the corneal surface.

Treatment And Management Of Corneal Abrasion

Treatment usually begins with gently flushing the eye using clean water or saline solution to remove any debris. It is important to avoid rubbing the eye, as this can worsen the injury. ¹, ²

If a foreign object is present, the doctor may carefully remove it using a sterile swab or instrument, often after applying numbing eye drops to minimize discomfort.

To prevent infection, your doctor may also prescribe some antibiotic eye drops or ointments. These are typically continued until symptoms resolve, and your provider will guide you on the exact duration.

For pain relief, mild cases may not require medication. If needed, over-the-counter oral anti-inflammatory drugs may be recommended, while in some cases, medicated eye drops or ointments may be prescribed for relief.

In certain situations, a bandage contact lens may be used to protect the cornea and reduce discomfort during the recovery process.

Alternatively, a pressure patch may be applied depending on the risk factors and severity of the injury.

Summing Up

A corneal abrasion is a common eye injury that usually heals well with timely care and appropriate treatment. While it may seem minor initially, symptoms such as pain, redness, or blurred vision should never be ignored, as early evaluation helps prevent complications and supports faster recovery.

Most cases resolve completely with proper diagnosis, infection control, and protective care for the eye. In clinical practice, advanced ocular surface support options such as OptiCover™ may also be used as an adjunct to standard care that supports the wound recovery area of the cornea and improves patient comfort, under medical supervision.

If symptoms persist or worsen, it is always best to seek prompt medical evaluation for further assessment and care.