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
Oil drop cataract is characteristic of ? 
Select and explain. 
A. Diabetes, B. Chalcosis, C. Galactosemia, D. Wilson's disease
C: Galactosemia
Answer: C: Galactosemia 
Explanation: Ans. C) Galactosemia Oil drop cataract Commonly seen in patients with galactosemia (a recessively inherited inborn error of carbohydrate metabolism). Accumulation of dulcitol (galactose reduction product) within the lens cells leads to increased intracellular osmotic pressure and fluid influx into the lens.