This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Optics and Errors of Refraction, Subject name: Ophthalmology
Not true regarding atropine 
Select and explain. 
A. Used as an eye ointment, B. Used in refraction in less than 5 yr of children, C. Fast action, D. Experimentally used in treatment of myopia
C: Fast action
Answer: C: Fast action 
Explanation: Atropine is slow acting and not fast acting ATROPINE( antimuscranic) causes cycloplegia as ciliary muscles are supplied by Parasympthetic sytem sho ciliary nerve , branch of 3rd cranial nerve Used as eye ointment Children < 5 yr, Children with Squint slow action Three times for 3 days Peak Effect- 3 Days Complete cycloplegia, but less potent mydriasis Retinoscopy - 3 Days PMT - 14 Days Tonus - 1 D experimentally used in treatment of myopia. Homatropine=> 5 yr