DDx ⬇
- Allergic conjunctivitis
- Chronic blepharitis
- Age-related
- Dry environment
- Abnormal lipid component of tears, eg, blepharitis
- Autoimmune disease, eg, Sjögren’s syndrome, systemic lupus erythematosus
- Xerophthalmia (vitamin A deficiency)
- Sarcoidosis
- Pemphigoid or Stevens-Johnson syndrome
- Impaired eyelid or lacrimal gland function
- Systemic or topical drugs
Related DDx ⬆