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
Fincham's test differentiates cataract from 
Select and explain. 
A. Conjunctivitis, B. Iridocyclitis, C. Open angle Glaucoma, D. Ac. Congestive Glaucoma
D: Ac. Congestive Glaucoma
Answer: D: Ac. Congestive Glaucoma 
Explanation: D i.e. Acute congestive glaucoma