miotics

Which of the following is TRUE regarding miotics?

• Drugs which dilates the pupil

• Drugs that reverse constriction of pupils

• Drugs used in treatment of uveitis

• Drugs that reverse the mydriasis effect of the pupil

Stimulation of the sphincter pupillae results in

• cycloplegia

• miosis

• accommodation spasm

• mydriasis

Inhibition of sympathetic nervous system results in

• cycloplegia

• miosis

• accommodation spasm

• mydriasis

Miotics mimics which of the following nuerotransmitter on the muscarinic receptor

• noradrenaline

• adrenaline

• dopamine

• acetylcholine

which of the following statement is TRUE regarding mechanism of miotic action

• preventing the breakdown of noradrenaline by adrenoterase

• preventing the breakdown of acetylcholine by cholinesterase

• mimicking the action of noradrenaline on the muscarinic receptor

• mimicking the action of acetylcholine on the alpha receptors

Which of the following drug is a Sympatolytic

• thymoxamine

• acetylcholine

• pilocarpine

• Bethanechol

Which of the following is NOT the ideal properties of Miotics

• quick onset

• a length of action twice the mydriatics previously employed

• effect on cilliary muscle without cycloplegia or cyclospasm

• no toxic reaction

Which of the following is NOT an advantage of Miotics

• avoids potophobia

• lowers IOP

• introduces pupil block

• reduces the angle closure

Which of the following is an Disadvantage of miotics

• dimness of vision

• drop in visual acuity

• latent hyperopia

• drop in IOP

Which of the following is NOT an irreversible indirect acting cholinesterase inhibitors

• ecothiophate iodide

• demacarium

• carbachol

• diisopropylfluro phosphate