Which ocular condition would you most likely use Bacitracin for?

• A. Internal hordeolum
• B. Irvine Gass syndrome
• C. Seborrheic blepharitis
• D. CLARE from pseudomonas

Answer: (C)

Bacitracin is a topical antibiotic that targets Gram-positive bacteria and is commonly used on the eyelid margin for blepharitis. Seborrheic blepharitis involves inflammation of the eyelid margin and can be associated with bacterial colonization, particularly by Staphylococcus; applying Bacitracin helps reduce the surface bacterial load and supports lid hygiene measures. The other conditions are not primarily treated with Bacitracin: Irvine Gass syndrome is a postoperative inflammatory edema of the retina, not an infection; CLARE from Pseudomonas involves a Gram-negative organism not covered by Bacitracin and requires different antimicrobial therapy; an internal hordeolum is a deeper Meibomian gland infection often managed with warm compresses and, if antibiotics are needed, agents effective for deeper glands, not solely a topical Bacitracin.