H11.021

Clinical Causes: Prolonged exposure to ultraviolet (UV) sunlight, especially outdoors without eye protection Chronic eye irritation from dust, wind, smoke, or environmental pollutants Exposure to wind and dry conditions that lead to eye dryness and irritation Genetic predisposition, where some individuals are more prone to developing pterygium

Key Symptoms: A visible growth or fleshy lesion on the conjunctiva, often near the nose Redness and inflammation around the affected area Grittiness or a sensation of having a foreign body in the eye Blurred vision if the pterygium extends onto the cornea Cosmetic concerns due to the appearance of the growth Tearing or increased watering of the eye

Diagnosis Path: Diagnosis of central pterygium involves a comprehensive eye examination by an eye care professional. The clinician will visually inspect the eye to identify the characteristic wedge-shaped growth extending onto the cornea. Additional assessments may include slit-lamp microscopy, which provides a detailed view of the ocular tissues, and measurement of the pterygium’s size and extent. In some cases, imaging or testing may be performed to evaluate the condition's impact on vision and corneal health.

Treatment Protocols: Treatment options depend on the size and progression of the pterygium and whether it impacts vision or causes discomfort. Common approaches include: - **Observation:** Small, asymptomatic pterygiums may only require regular monitoring. - **Medical Management:** Use of topical lubricants or corticosteroid eye drops to reduce irritation and inflammation. - **Surgical Removal:** When the growth threatens vision or causes significant discomfort or cosmetic concern, surgical excision may be recommended. Postoperative care often involves controlling inflammation and preventing recurrence. Preventive measures include wearing sunglasses and hats to protect eyes from UV exposure and avoiding environmental irritants that can worsen the condition.