<unk> (ophthalmic) is an anticholinergic that is FDA approved for the treatment of cycloplegic refraction, for pupillary dilation desired in inflammatory conditions of the iris and uveal tract.   Common adverse reactions include blurred vision, photophobia and local irritation.
Atropine 
Neostigmine
Physostigmine
Homatropine
Suxamethonium chloride
Pyridostigmine
Neostigmine methylsulfate
Thiocarboxime