This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Lens, Subject name: Ophthalmology
Spontaneous absorption of the lenticular material is seen in: 
Select and explain. 
A. Myotonic dystrophy, B. Hallermann-Streiff syndrome, C. Aniridia, D. Persistent hyperplastic primary vitreous
B: Hallermann-Streiff syndrome
Answer: B: Hallermann-Streiff syndrome 
Explanation: Ans. (b) Hallermann-Streiff syndromeRef: Kanski 7/e, p. 302Spontaneous lens absorption sometimes occurs in older individuals with Hallermann-Streiff syndrome (Salo, Terasaki, Amano, Okamoto & Miyake, 2002)Other ocular features#Microphthalmos#B/L, congenital cataract#Blue sclera#Disc coloboma#Nystagmus and strabismus