This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Acquired Cataract, Subject name: Ophthalmology
In a patient, highest visual morbidity is seen in: 
Select and explain. 
A. Nuclear cataract, B. In tumescent cataract, C. Posterior subcapsular, D. Cuneiform cataract
C: Posterior subcapsular
Answer: C: Posterior subcapsular 
Explanation: Ans: C (Posterior subcapsular cataract) Ref: Basok Essentials of Ophthalmology. 5th edition, pg. 248: Parson's Diseases of the Eye 21st edition pg no 262.Explanation:Posterior subcapsular cataract or posterior cortical cataract:The opacity in the posterior cortex is close to the nodal point of the lens.Nodal point 7.0S mm from the anterior surface of the cornea.* Posterior cortical cataract is at the visual axis so during day time pupil constricts - Day Blindness.