Effect of atropine on eye is: (A) Active mydriasis, (B) Passive mydriasis, (C) Miosis, (D) Pin point pupil
Answer is B. Parasympatholytics like atropine produce passive mydriasis due to blockade of m3 receptors. sympathomimetics produce active mydriasis due to contraction of dilator papillae Ref: Katzung 11th ed pg 117