ABSTRACT
The lacrimal gland is a tubule-alveolar gland consisting of acini and ducts. Acini are responsible for the production of watery secretions. A small, round opening located medially at the posterior edge of the upper and lower lid margins at the junction of the lid's ciliated and non-ciliated parts. Bilateral dacryoadenitis should raise suspicion of sarcoidosis. Persistence or presence of paraesthesia should raise concern of carcinoma. An autoimmune condition in which the salivary and lacrimal glands become infiltrated with lymphocytes and the acini are progressively destroyed. Showing interpalpebral staining of cornea and conjunctiva, rather than a superior or inferior stain pattern seen in superior limbic keratoconjunctivitis or exposure keratopathy, respectively. Xerophthalmia is caused by severe vitamin A deficiency, which is a major cause of childhood blindness in Africa. It has the features such as Nyctalopia, Xerosis: Severe conjunctival dryness and keratinization, Bitot's spots: Triangular keratinized buildup on the conjunctiva, and Punctate corneal epithelial erosions.
