Dry eye is a well-known symptom of Sjögren's disease, but it also occurs in patients with other autoimmune diseases. A population-based study from Taiwan quantified the frequency of this condition in various autoimmune diseases. The autoimmune disease scleroderma can attack the connective tissue and lead to fibrosis of the lacrimal gland, reducing the production of tear fluid[1]. Thyroid disorders, especially Graves' disease and Hashimoto's thyroiditis, affect tear production due to hormonal changes and autoimmune reactions[1][2]. Rheumatic diseases, including Sjögren's syndrome, cause a malfunction of the lacrimal glands and a reduction of the tear film[1]. Dry eye is defined as a disease of the eye surface caused by the instability of the tear film, which leads to inflammation and damage to the cornea or conjunctiva[3][4]. Treatment includes artificial tears, anti-inflammatory agents such as cyclosporine A, and tetracyclines for blepharitis[3].