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
[{'content': 'Krukenberg’s spindles are seen in? \nSelect and explain. \nA. Pigmentary glaucoma, B. Sympathetic opthalmitis, C. Chalazion, D. Retinitis pigmentosa', 'role': 'user'}, {'content': 'Answer: A \nExplanation: “Krukenberg’s spindles are seen in pigmentary glaucoma”\nPIGMENTARY GLAUCOMA: Type of secondary glaucoma which develops due to blockage of trabecular meshwork by pigment particles\nClinical picture is similar to that produced by POAG in a young myopic male Deposition of pigement occurs on anterior structures of the eye like the trabecular meshwork,\niris, posterior surface of the cornea (known as krukenberg’s spindles) , ciliary zonules, the lens.\nTransillumination of iris shows slit like defect which is pathognomic Also Know: Krukenberg’s operation:\nconverts a forearm amputation stump into a pincer Kruken berg’s tumour:\nA Krukenberg tumor refers to a malignancy in the ovary that metastasized from a primary site,\nclassically the gastrointestinal tract, although it can arise in other tissues such as the breast. Gastric adenocarcinoma,\nespecially at the pylorus, is the most common source. Krukenberg tumors are often (over 80%) found in both ovaries, consistent with its metastatic nature', 'role': 'assistant'}]