Muscarinic receptor agonists u 1. Pharmacological effects o(1)Eyes Miosis(缩瞳): contraction of sphincter muscle of iris u Lowing intraocular pressure(降低眼内压): enlarging angle of anterior chamber, increasing drainage of aquous humor Spasm of accommodation(调节癌挛): contraction of ciliary muscle, contraction for near vISIon1. Pharmacological effects （1）Eyes Miosis（缩瞳）: contraction of sphincter muscle of iris Lowing intraocular pressure（降低眼内压）: enlarging angle of anterior chamber, increasing drainage of aquous humor Spasm of accommodation（调节痉挛）: contraction of ciliary muscle, contraction for near vision Muscarinic receptor agonists