H16.421 Pannus (corneal), right eye

Name of the Condition

• Pannus (corneal), right eye

Summary

Pannus (corneal), right eye is a condition characterized by the abnormal growth of fibrovascular tissue onto the cornea of the right eye, typically extending from the limbus (the border between the cornea and sclera). This tissue can impair vision and may result from chronic inflammation, injury, or ocular diseases. Evaluation is necessary to determine the underlying cause and appropriate management.

Causes

Corneal pannus in the right eye can be triggered by chronic inflammation, infection, or injury to the cornea. Common causes include autoimmune conditions like rheumatoid arthritis, chronic dry eye, or ocular surface disorders. It may also develop secondary to chemical burns, contact lens-related issues, or prior ocular surgery affecting the right eye.

Risk Factors

• Chronic ocular inflammation or infection in the right eye.
• Autoimmune diseases (e.g., rheumatoid arthritis).
• Prolonged contact lens use with poor hygiene in the right eye.
• History of eye trauma or surgery involving the right eye.
• Underlying systemic conditions affecting ocular health.
• Use of topical medications that disrupt corneal integrity in the right eye.

Symptoms

• Blurred or reduced vision in the right eye.
• Eye redness or irritation in the right eye.
• Sensitivity to light (photophobia) in the right eye.
• A feeling of a foreign object in the right eye.
• Visible fibrovascular tissue on the cornea of the right eye (may be observed during exam).

Diagnosis

Diagnosis involves a comprehensive eye exam of the right eye, including slit-lamp microscopy to assess the extent of tissue growth. Additional tests, such as corneal topography or ocular surface staining, may be performed to evaluate the underlying cause and severity.

Treatment Options

Treatment focuses on addressing the underlying cause and managing symptoms. Options may include topical anti-inflammatory medications, lubricating eye drops, or immunosuppressive agents for autoimmune-related cases. In severe cases, surgical intervention, such as pannus excision or corneal transplantation, may be considered.

Prognosis and Follow-Up

Prognosis depends on the underlying cause and timely intervention. With appropriate treatment, vision may stabilize or improve, but chronic or severe cases can lead to permanent vision loss. Regular follow-up with an eye care provider is essential to monitor progression and adjust management as needed.

Complications

Untreated or progressive pannus can lead to corneal scarring, permanent vision impairment, or increased risk of infection. Advanced cases may require more invasive treatments, such as corneal grafting, to restore function.

Lifestyle & Prevention

• Maintain good ocular hygiene, especially with contact lens use.
• Protect the eyes from injury or chemical exposure.
• Manage underlying conditions like dry eye or autoimmune diseases.
• Avoid smoking, which can exacerbate ocular inflammation.
• Use prescribed medications as directed to control inflammation.

When to Seek Professional Help

Seek prompt medical attention if you experience sudden vision changes, increased eye pain, or worsening redness in the right eye. Early evaluation can prevent complications and guide appropriate treatment.

Tips for Medical Coders

Document the laterality (right eye) and specify the condition as pannus (corneal) to ensure accurate coding. Include clinical details such as the extent of tissue growth, underlying causes, and treatment plans to support code assignment. Verify that the diagnosis aligns with the clinical presentation and documentation.