Corneal Ulcer

The causes of a corneal ulcer (keratitis) are :

1. Contact lenses – contaminated solution, poor hygiene, over usage, sleeping with contact lenses on, using tap water or swimming with contact lens on.
2. Trauma – chemical injury, thermal burn, animal tail, or vegetative matter
3. Post-surgery – delayed healing, loose sutures
4. Lid deformities ,incomplete closure of eyes
5. Decreased nerve supply to the cornea – seen in diabetics and bell’s palsy patients
6. Allergic conjunctivitis
7. Vitamin A deficiency
8. Prolonged use of steroid eye drops
9. Severe dry eyes –