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: Anaesthesia
Stocker's line is seen in? 
Select and explain. 
A. Pterygium, B. Glaucoma, C. Posterior scleritis, D. Diabetic retinopathy
A: Pterygium
Answer: A: Pterygium 
Explanation: Ans. is 'a' i.e., Pterygium is line of iron deposition in the corneal epithelium seen adjacent to the head of the pterygium.