Ophthalmology Primary Angle-Closure Glaucoma f5a7b7db Earliest drug used in acute angle closure glaucoma A Diamox B Pilocarpine C Atropine D DFP High-Yield Explanation Ans. is 'a' i.e Diamox (Acetazolamide) As already explained in Nov 99, Acetazolamide is used even earlier than Pilocarpine.