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
Commonest ocular sign of hypothyroidism is 
Select and explain. 
A. Cataract, B. Glaucoma, C. Band-shaped keratopathy, D. Uveitis
A: Cataract
Answer: A: Cataract 
Explanation: Cataract - hypothyroidism
Darlymple sign - Graves disease.