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
Which type of senile cataract is notorious for glaucoma formation – 
Select and explain. 
A. Incipient cataract, B. Hypermature morgagnian cataract, C. Intumescent cataract, D. Nuclear cataract
C: Intumescent cataract
Answer: C: Intumescent cataract 
Explanation: Both intumescent cataract and hypermature morgagnion cataract can cause glaucoma, although by different mechanism.


Intumescent cataract → causes phacomorphic glaucoma due to swelling of lens.
Hypermature morgagnion cataract → Phacolytic glaucoma due to leakage of soluble lens protein.


However, phacomorphic glaucoma is the most common type of lens-induced glaucoma (50-70%).
Therefore, best answer here is intumescent cataract.