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
Voissius ring is seen in the 
Select and explain. 
A. Cornea, B. Anterior capsule of the lens, C. Posterior capsule of the lens, D. Iris
B: Anterior capsule of the lens
Answer: B: Anterior capsule of the lens 
Explanation: Vossius ring:  It is a circular ring of brown pigment seen on the anterior capsule.
It occurs due to striking of the contracted pupillary margin against the crystalline lens.
It is always smaller than the size of the pupil.