1. Behçet disease
2. Crohn disease
3. Drugs, including the following:

allopurinol amphotericin B aspirin ferrocholinate ferrous fumarate ferrous gluconate

ferrous succinate ferrous sulfate floxuridine fluorouracil gentamicin iron dextran

iron sorbitex phenytoin polysaccharide- iron complex sodium salicylate

4. Fungi
*5. Herpes simplex
6. Mucous membrane pemphigoid
7. Pseudomonas ulcer in patients with AIDS
8. Soft chancre
*9. Syphilis (acquired lues)
10. Tuberculosis
11. Wegener granulomatosis

Fraunfelder FT, Fraunfelder FW. Drug-induced ocular side effects. Woburn, MA: Butterworth-Heinemann, 2001.

Fraunfelder FT, Roy FH. Current ocular therapy, 5th ed. Philadelphia: WB Saunders, 2000.

Hegab SM, et al. Conjunctival ulcer in patients with Crohn's disease. Ophthalmic Surg Lasers 1994; 25:638-639.

Jordan DR, et al. Wegener's granulomatosis: eyelid and conjunctival manifestations as the presenting feature in two individuals. Ophthalmology 1994; 101:602-607.