This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Glaucoma, Subject name: Ophthalmology
Glaukomflecken is 
Select and explain. 
A. Acute uveitis due to glaucoma, B. Lens opacity due to glaucoma, C. Retinal detachment due to glaucoma, D. Corneal opacity due to glaucoma
B: Lens opacity due to glaucoma
Answer: B: Lens opacity due to glaucoma 
Explanation: Acute congestive angle closure may cause small anterior grey-white subcapsular or capsular opacities, glaukomflecken to form within the pupillary area. These represent focal infarcts of the lens epithelium and are almost pathognomonic of prior acute angle-closure glaucoma. Ref: kanski's clinical ophthalmology, 8th edition , page no. 273