The cornea is an avascular structure in pathological ophthalmic conditions. It will get vascularised.

The causes of vascularisation are as follows: Inflammation  Infection  Chemical injury  Traumatic Postoperative   After keratoplasty    Riboflavin deficiency  Acne rosacea   Trachomatous  Pheletenulr conjunctivitis  Exposure to mustard gas  Industrial  Occupational Share your opinion.