I need some advice regarding treating marginal ulcers. In your experience when is the best time to introduce steroid in addition to topical Antibiotics? I put a pt on AB and was waiting for improvement in epithelial defect before introducing steroid but did not see much progress after 4-5 days with only AB. Do you guys put pt on steroid even though epithelium defect is still significant. How much improvement do you expect to see after 4-5 days? I really appreciate you help