A corneal ulcer is a serious eye condition that requires prompt medical attention. It is an open sore that develops on the cornea—the clear, dome-shaped surface covering the front of the eye. Corneal ulcers are often caused by infections, but they can also result from eye injuries or certain underlying medical conditions.
If left untreated, a corneal ulcer can lead to permanent vision loss, making early diagnosis and treatment essential.
What Is a Corneal Ulcer?
The cornea plays a vital role in focusing light and protecting the inner structures of the eye. When the cornea becomes damaged or infected, an ulcer may develop on its surface.
Bacteria are the most common cause of corneal ulcers, especially among contact lens users. However, viruses, fungi, and parasites can also cause corneal infections under certain circumstances.
Because the cornea is highly sensitive, even a small ulcer can cause significant discomfort and affect vision.
What Causes a Corneal Ulcer?
Several factors can increase the risk of developing a corneal ulcer.
Contact Lens Misuse
Improper contact lens hygiene, wearing lenses overnight, or using contaminated lenses can introduce harmful microorganisms to the eye, increasing the risk of infection.
Eye Injuries
Scratches or trauma to the cornea caused by dust, plant material, chemicals, or foreign objects can create an opening for bacteria or fungi to enter the eye.
Eye Infections
Certain viral infections, such as herpes simplex virus, as well as bacterial or fungal infections, can lead to the development of corneal ulcers.
Dry Eye Syndrome
Severe dry eyes reduce the eye’s natural protective tear film, making the cornea more vulnerable to damage and infection.
Weakened Immune System
People with diabetes, autoimmune diseases, or weakened immunity may have a higher risk of developing corneal infections.
Symptoms of a Corneal Ulcer
Corneal ulcers often develop quickly and should never be ignored.
Common symptoms include:
- Severe eye pain.
- Redness in the affected eye.
- Blurred or reduced vision.
- Excessive tearing or eye discharge.
- Sensitivity to light (photophobia).
- A feeling that something is stuck in the eye.
- A visible white or grey spot on the cornea in some cases.
If you experience any of these symptoms, seek medical care immediately.
How Is a Corneal Ulcer Treated?
Treatment depends on the underlying cause and the severity of the ulcer.
Medications
Most corneal ulcers are treated with prescription eye drops. These may include antibiotics for bacterial infections, antiviral medications for viral infections, or antifungal medications for fungal infections.
It is important to use all medications exactly as prescribed and complete the full course of treatment.
Avoid Contact Lens Use
Patients should stop wearing contact lenses until the ulcer has completely healed and the ophthalmologist confirms it is safe to use them again.
Follow-Up Examinations
Regular follow-up appointments allow the ophthalmologist to monitor healing and adjust treatment if necessary. Early improvement does not mean treatment should be discontinued without medical advice.
In severe cases where the cornea is significantly damaged, additional procedures or corneal transplantation may be required to restore vision.
When Should You See a Doctor?
A corneal ulcer is an eye emergency. Do not delay seeking medical attention if you notice:
- Sudden eye pain.
- Redness that worsens.
- Blurred or reduced vision.
- Thick eye discharge.
- Light sensitivity.
- A white spot on the front of the eye.
Prompt treatment greatly improves the chances of preserving vision and preventing complications.
Corneal Care at Tandon Eye Hospital
At Tandon Eye Hospital, patients with corneal conditions receive comprehensive evaluations using advanced diagnostic equipment. Our experienced ophthalmologists identify the underlying cause of corneal ulcers and provide personalised treatment to control infection, relieve symptoms, and protect long-term vision.
Early diagnosis and timely treatment are essential for achieving the best possible outcomes.
Final Thoughts
A corneal ulcer is a serious eye condition that should never be ignored. Although it can develop due to infections, injuries, or improper contact lens use, early treatment can prevent serious complications and protect your eyesight.
If you experience persistent eye pain, redness, blurred vision, or unusual discharge, consult an eye specialist without delay. Timely medical care is the best way to preserve your vision and maintain healthy eyes.
