Ophthalmology Terminology X
Xanthelasma. Multiple yellowish subcutaneous plaques or nodules that occurs in the medial aspect of the eyelids, near the nose. They occurs mainly in patients with high blood cholesterol.
Xanthogranuloma. Yellowish nodules that occur in the iris of patients with Juvenile Xanthogranuloma. They either localized to part of the iris or diffuse all over the iris.
Xeroderma pigmentosum. A skin condition that is characterized by abnormal and progressive skin pigmentation on exposure to sunlight.
Xerophthalmia. Dry eye that is associated with Vitamin A deficiency.
Xerosis. Severe dry eye condition and keratinization of the cornea that occurs in patients with conjunctival cicatrization.