Pharmacology

Miotic Agents

  • Heroin reduces the cortical inhibition of the Edinger-westphal nucleus
  • Carbachol increases acetylcholine release
  • Physostigmine inhibits acetylcholinesterases
  • Alpha blockers paralyse the dilator muscle
  • Pilocarpine stimulates acetylcholine muscarinic receptors
    • Causes ciliary muscle contraction, pulling on the scleral spur to open the TM…
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Sympathetic Neurotransmission