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
During accomodation, changes in lens will be 
Select and explain. 
A. Reduction in radius of curvature of anterior surface of lens only, B. Reduction in radius of curvature of posterior surface of lens only, C. Increase in radius of curvature of posterior surface of lens only, D. Both radius of curvature of anterior and posterior surfaces reduce
A: Reduction in radius of curvature of anterior surface of lens only
Answer: A: Reduction in radius of curvature of anterior surface of lens only 
Explanation: During accomodation, reduction in radius of curvature of anterior surface of lens. Posterior surface remains the same.