H16.13 Photokeratitis

Name of the Condition

• Photokeratitis

Summary

Photokeratitis is a painful eye condition caused by exposure to ultraviolet (UV) radiation, resulting in inflammation of the cornea. It is often described as a sunburn of the eye and can affect one or both eyes.

Causes

Exposure to UV light, typically from the sun or artificial sources such as welding arcs, tanning beds, or certain types of lamps, is the primary cause. Reflective surfaces like snow, water, or sand can amplify UV exposure.

Risk Factors

• Outdoor activities without proper eye protection.
• Participation in activities like skiing, welding, or using tanning equipment.
• High-altitude environments or locations near the equator where UV exposure is stronger.

Symptoms

• Eye pain and redness.
• Sensitivity to light (photophobia).
• A gritty sensation in the eye.
• Blurred vision and tearing.

Diagnosis

Diagnosis involves a clinical examination by an eye care professional, often using a slit lamp to assess corneal damage. Fluorescein staining may be used to detect epithelial defects.

Treatment Options

• Temporary avoidance of UV exposure to allow healing.
• Use of lubricating eye drops or artificial tears to relieve discomfort.
• Pain relievers, such as oral NSAIDs or topical anesthetics, under medical guidance.
• Cold compresses to reduce inflammation.

Prognosis and Follow-Up

Most cases resolve within 24 to 48 hours with proper care. Follow-up may be recommended to ensure complete healing and to monitor for complications.

Complications

Severe or prolonged exposure can lead to corneal scarring, which may affect vision. Recurrent episodes may increase the risk of long-term damage.

Lifestyle & Prevention

• Wear UV-protective sunglasses or goggles during outdoor activities.
• Use protective eyewear when working with welding equipment or other UV sources.
• Avoid looking directly at the sun or artificial UV sources.

When to Seek Professional Help

Seek medical attention if symptoms persist beyond 48 hours, worsen, or if there is severe pain, vision loss, or signs of infection.

Tips for Medical Coders

Document the specific eye affected (e.g., right, left, bilateral) and any associated factors like UV exposure or occupational history. Ensure the diagnosis aligns with clinical findings and avoid using this code for keratitis caused by non-UV factors.