H11.141

Clinical Causes: Vitamin A deficiency: A common cause leading to dryness of the conjunctiva by affecting the health of ocular tissues. Environmental factors: Exposure to dry, dusty, or windy conditions can contribute to conjunctival dryness. Chronic allergic conjunctivitis: Allergic reactions can cause inflammation and dryness of the conjunctiva. Use of certain medications: Some drugs, such as antihistamines and isotretinoin, can reduce tear production and dryness. Age-related changes: As people age, natural reduction in tear production can lead to dryness. Underlying systemic conditions: Diseases such as Sjögren’s syndrome or other autoimmune disorders may cause dryness of ocular surfaces. Prolonged screen time: Extended periods of looking at screens can decrease blink rate, leading to increased dryness. Environmental pollutants: Exposure to smoke and pollution can impair tear film stability, leading to conjunctival dryness.

Key Symptoms: Persistent dryness or a gritty sensation in the right eye Redness or irritation around the conjunctiva Feeling of foreign body sensation in the eye Sensitivity to light (photophobia) Occasional tearing or watery eyes as a reflex response Blurry vision or decreased clarity of vision Discomfort or pain, especially in dry or windy environments Possible crusting or mucus discharge in severe cases

Diagnosis Path: Diagnosis of conjunctival xerosis involves a comprehensive eye examination by an eye care professional. The clinician will review medical history, assess symptoms, and perform slit-lamp examination to evaluate the conjunctiva. Additional tests may include measuring tear production, such as Schirmer’s test, and evaluating for underlying systemic or ocular conditions contributing to dryness. No specific laboratory or imaging studies are diagnostic for this condition; diagnosis is primarily clinical.

Treatment Protocols: Treatment strategies aim to alleviate dryness, protect the ocular surface, and address underlying causes. Approaches include: - Artificial tears and lubricating eye drops to supplement moisture and reduce irritation. - Warm compresses and eyelid hygiene practices to improve tear film stability. - Managing environmental exposure by using humidifiers or protective eyewear. - Addressing vitamin deficiencies, particularly vitamin A, through dietary changes or supplements. - Treating underlying allergies or systemic conditions with appropriate medications. - Reducing exposure to environmental pollutants and cigarette smoke. - In severe or resistant cases, doctor-prescribed medications that reduce inflammation or stimulate tear production may be considered. It is important to follow the guidance of an eye healthcare professional for diagnosis and tailored treatment plans.