12 Questions
Why should beta-blockers be cautiously used in patients with bronchial asthma and heart failure?
They cause systemic side effects
Which drug is considered the drug of choice in open-angle glaucoma due to its longer duration of action, high efficacy, and low systemic toxicity?
Latanoprost
Which miotic is used topically in the treatment of open-angle and acute congestive glaucoma by facilitating drainage of aqueous humor?
Pilocarpine
What is the main action of a-adrenergic agonists in glaucoma treatment?
Reducing formation of aqueous humor
Which topical drug does not cross the blood-brain barrier and is used as an adjunct in glaucoma treatment?
Apraclonidine
Why is dipivefrin considered a prodrug in glaucoma treatment?
It penetrates the cornea and gets converted into adrenaline
How do osmotic agents reduce intraocular pressure in acute congestive glaucoma?
By drawing fluid from the eye into the circulation through osmotic effect
Which medication is preferred in chronic simple glaucoma due to a lower risk of systemic side effects?
Dorzolamide
How do B-adrenergic blockers decrease intraocular pressure?
By decreasing aqueous humour formation
Which of the following is a selective B₁-blocker used in glaucoma treatment?
Betaxolol
Why is timolol widely used in glaucoma treatment?
It lacks local anaesthetic or partial agonistic properties
What is the main mechanism of action of carbonic anhydrase inhibitors in reducing intraocular pressure?
Inhibiting carbonic anhydrase enzyme
Test your knowledge on drugs used to treat glaucoma, including osmotic agents like Mannitol and glycerol, and carbonic anhydrase inhibitors like Acetazolamide, dorzolamide, and brinzolamide. Learn about their mechanisms of action and therapeutic uses.
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