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Xerosis Conjunctivae is a severe medical condition characterized by the abnormal dryness and keratinization (hardening) of the conjunctiva (the clear membrane over the white of the eye). It is often a sign of severe systemic deficiency.
read more about xerosis conjunctivae ...The primary cause is severe Vitamin A deficiency (retinol). Vitamin A is essential for the health of the epithelial cells that line the conjunctiva. The severe lack of Vitamin A causes the normally wet cells to change into dry, hardened, keratinized tissue. This drying and hardening are what define the condition.
Symptoms define severe eye dryness. The conjunctiva loses its wet, smooth appearance and develops a dull, hazy, or rough texture. In severe cases, foamy or bubbly white spots called Bitot's spots appear on the conjunctiva, which are a definitive sign of the deficiency. The condition leads to severe pain and irritation.
Xerosis Conjunctivae severely impacts vision by causing corneal damage. The hardened conjunctiva causes friction, leading to corneal ulcers and permanent scarring. If the condition progresses, the cornea dries out completely (keratomalacia), resulting in blindness.
Diagnosis is clinical and based on visual inspection for Bitot's spots and severe dryness. Blood tests are necessary to confirm the severe deficiency in Vitamin A (retinol) levels.
Necessary treatments involve high-dose Vitamin A supplementation and topical antibiotics (to prevent secondary infection). The vitamin supplements must be administered immediately to reverse the drying and prevent irreversible corneal damage.
Yes, if treated early with Vitamin A supplements, the condition is curable, but advanced corneal damage is permanent.
Xerosis is a far more severe, systemic condition than common dry eye syndrome.
Bitot's spots usually disappear once the underlying Vitamin A deficiency is treated.
Consult an eye doctor immediately if you have trouble seeing at night (Night Blindness) or if the white of your eye looks "foamy" or dry. This is a sign of severe malnutrition. Without Vitamin A intervention, the cornea can liquefy (Keratomalacia), leading to total blindness.
AAO. Vitamin A Deficiency (aao.org). 2024.
WHO. Micronutrient Deficiencies (who.int). 2024.
StatPearls. Xerophthalmia (ncbi.nlm.nih.gov). 2024.
Mayo Clinic. Vitamin A Benefits (mayoclinic.org). 2024.