This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Ophthalmology
Salmon patch is seen in – 
Select and explain. 
A. Interstitial keratitis, B. Disciform keratitis, C. Acne rosacea, D. Phlyctenular keratitis
A: Interstitial keratitis
Answer: A: Interstitial keratitis 
Explanation: Salman patch appearance of cornea is seen in Interstitial Keratitis.
Salman patches on retina is seen in non-proliferative sickle cell retinopathy.