Antibiotics for Corneal Ulcers
98 Questions
0 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the mechanism of action of Tamoxifen?

  • Alpha1a-adrenergic blocker
  • Selective estrogen receptor modulator (correct)
  • Non-selective alpha blocker
  • Selective beta blocker

    • What is the ophthalmic use of Tamsulosin?

  • Treatment of benign prostatic hyperplasia (correct)
  • Treatment of age-related macular degeneration
  • Treatment of cataract
  • Treatment of glaucoma

    • What is the potential ophthalmic adverse effect of Sildenafil?

  • Reversible corneal opacity
  • Non-arteritic ischemic optic neuropathy
  • Retinal vascular occlusion
  • All of the above (correct)

    • What is the mechanism of action of Topiramate?

    <p>Inhibition of carbonic anhydrase</p> Signup and view all the answers

    What is the potential ophthalmic adverse effect of Digitalis derivatives?

    <p>Reversible disturbances in color vision</p> Signup and view all the answers

    What is the mechanism of action of Moxifloxacin?

    <p>Inhibit DNA gyrase (topoisomerase II) and topoisomerase IV</p> Signup and view all the answers

    What is the primary indication for Moxifloxacin 0.5% (Vigamox) eye drops?

    <p>Bacterial Conjunctivitis</p> Signup and view all the answers

    What is the benefit of using Pilocarpine 5mg QID in patients with Sjogren's syndrome?

    <p>Increases tear production</p> Signup and view all the answers

    What is the mechanism of action of Varenicline (Tyrvaya) nasal spray?

    <p>Binds nicotinic acetylcholine receptor on trigeminal nerve</p> Signup and view all the answers

    What is the purpose of Punctal Occlusive devices?

    <p>To block tear drainage</p> Signup and view all the answers

    What is the mechanism of action of Beta Blockers in reducing intraocular pressure?

    <p>Decrease aqueous production</p> Signup and view all the answers

    What is the primary effect of Timolol Maleate on the heart rate?

    <p>No significant effect on heart rate</p> Signup and view all the answers

    Which of the following Beta Blockers is known for its 'escape' phenomenon?

    <p>Timolol Maleate</p> Signup and view all the answers

    What is the typical dosing frequency of Beta Blockers in the treatment of glaucoma?

    <p>QD or BID</p> Signup and view all the answers

    What is the characteristic of Timolol Maleate's effect on intraocular pressure?

    <p>Effective during waking hours only</p> Signup and view all the answers

    What is the mechanism of action of NSAIDs?

    <p>Inhibiting the cyclooxygenase enzyme</p> Signup and view all the answers

    What is the ophthalmic use of Flurbiprofen?

    <p>Treatment of allergic conjunctivitis</p> Signup and view all the answers

    What is the trade name of the medication containing Diclofenac?

    <p>Voltaren</p> Signup and view all the answers

    What is the ophthalmic use of Diclofenac?

    <p>Treatment of ocular inflammation</p> Signup and view all the answers

    What is the concentration of Acular LS?

    <p>0.4%</p> Signup and view all the answers

    What is the mechanism of action of Phenylephrine?

    <p>Alpha 1 adrenergic agonist</p> Signup and view all the answers

    What is the ophthalmic use of Brimonidine tartrate?

    <p>Reduction of intraocular pressure</p> Signup and view all the answers

    Which medication is used to treat acquired blepharoptosis?

    <p>Upneeq</p> Signup and view all the answers

    What is a common adverse effect of alpha 1 adrenergic agonists?

    <p>All of the above</p> Signup and view all the answers

    What is the ratio of alpha 2 to alpha 1 adrenergic activity of Naphazoline?

    <p>2:1</p> Signup and view all the answers

    What is the likely indication for the use of Dexamethasone in ophthalmology?

    <p>Post-operative inflammation and pain</p> Signup and view all the answers

    Which steroid formulation has a lower potential to increase intraocular pressure (IOP)?

    <p>Loteprednol etabonate</p> Signup and view all the answers

    What is the likely mechanism of action of Lotemax in reducing inflammation?

    <p>Suppressing the immune response</p> Signup and view all the answers

    Which of the following medications is used to treat macular edema associated with uveitis?

    <p>Difluprednate</p> Signup and view all the answers

    What is the unique feature of the AMPPLIFY delivery system?

    <p>Submicron technology</p> Signup and view all the answers

    What is the purpose of using Thiazine dye in ocular surface assessment?

    <p>To stain damaged or dead cells</p> Signup and view all the answers

    What is the name of the dye that contains sodium iodide?

    <p>Lissamine Green</p> Signup and view all the answers

    What is the mechanism of action of Trypan Blue?

    <p>It stains damaged or dead cells</p> Signup and view all the answers

    What is the use of Methylene Blue in ocular surface assessment?

    <p>To stain damaged or dead cells</p> Signup and view all the answers

    What is the ophthalmic use of Lissamine Green?

    <p>To stain damaged or dead cells</p> Signup and view all the answers

    What is the mechanism of action of Indocyanine Green?

    <p>It detects choroidal abnormalities</p> Signup and view all the answers

    What is the ophthalmic use of Triarylmethane dye?

    <p>To stain damaged or dead cells</p> Signup and view all the answers

    What is the purpose of using Vital White light in ocular surface assessment?

    <p>To evaluate corneal endothelial cell viability</p> Signup and view all the answers

    What is the ophthalmic use of Azo dye?

    <p>To stain damaged or dead cells</p> Signup and view all the answers

    What is the common side effect of using certain dyes in ocular surface assessment?

    <p>Sensitivity to shellfish or iodine</p> Signup and view all the answers

    What is the mechanism of action of Tamoxifen?

    <p>Selective estrogen receptor modulator</p> Signup and view all the answers

    What is the ophthalmic use of Sildenafil?

    <p>Treating erectile dysfunction</p> Signup and view all the answers

    What is the mechanism of action of Aromatase Inhibitors?

    <p>Inhibiting the conversion of androgens to estrogens</p> Signup and view all the answers

    What is the ophthalmic use of Topiramate?

    <p>Treating migraines and seizures</p> Signup and view all the answers

    What is the mechanism of action of Tamsulosin?

    <p>Alpha 1 adrenergic blocker</p> Signup and view all the answers

    What is the mechanism of action of Digitalis derivatives?

    <p>Inhibiting sodium potassium ATPase</p> Signup and view all the answers

    What is the mechanism of action of Imidazole Mixed alpha 1&2 adrenergic agonist?

    <p>Mixed alpha 1&amp;2 adrenergic agonist</p> Signup and view all the answers

    What is the ophthalmic use of Brimonidine tartrate?

    <p>To reduce intraocular pressure</p> Signup and view all the answers

    What is the purpose of using Oxymetazoline?

    <p>To relieve nasal congestion</p> Signup and view all the answers

    What is the mechanism of action of Phenylephrine?

    <p>Alpha 1 adrenergic agonist</p> Signup and view all the answers

    What is the ophthalmic use of Naphazoline?

    <p>To relieve redness</p> Signup and view all the answers

    What is the benefit of using Brimonidine tartrate?

    <p>May decrease intraocular pressure</p> Signup and view all the answers

    What is the mechanism of action of Moxifloxacin 0.5% (Vigamox)?

    <p>Inhibit DNA gyrase (topoisomerase II) and topoisomerase IV</p> Signup and view all the answers

    What is the ophthalmic use of Pilocarpine 5mg QID?

    <p>Treatment of dry eye syndrome in patients with Sjogren's syndrome</p> Signup and view all the answers

    What is the mechanism of action of Cevimeline (Evoxac)?

    <p>Cholinergic agonist that stimulates nicotinic acetylcholine receptors</p> Signup and view all the answers

    What is the ophthalmic use of Varenicline (Tyrvaya) nasal spray?

    <p>Treatment of dry eye syndrome</p> Signup and view all the answers

    What is the characteristic of Moxifloxacin 0.5% (Vigamox) in terms of penetration?

    <p>Excellent conjunctival penetration</p> Signup and view all the answers

    What is the purpose of Punctal Occlusive devices?

    <p>To block tear drainage</p> Signup and view all the answers

    What is the percentage reduction in Age-related Macular Degeneration (AMD) associated with the Mediterranean diet?

    <p>41%</p> Signup and view all the answers

    What is the main difference between first-generation and second-generation antihistamines?

    <p>Lipophilicity</p> Signup and view all the answers

    What is the effect of Vitamin E on the progression of Retinitis Pigmentosa?

    <p>It hastens the progression</p> Signup and view all the answers

    What is the effect of alpha 2 selective agonist Brimonidine on blood vessels?

    <p>Vasoconstriction</p> Signup and view all the answers

    What is the primary use of Edrophonium in diagnosing Myasthenia Gravis?

    <p>To perform the Tensilon Test</p> Signup and view all the answers

    What is the characteristic of a pupil with Adie's Syndrome?

    <p>It is sluggish and tonic during accommodation</p> Signup and view all the answers

    Which of the following antihistamines is known to cause drowsiness?

    <p>Cetirizine</p> Signup and view all the answers

    What is the effect of Imidazole derivatives on rebound hyperemia?

    <p>Decreases rebound hyperemia</p> Signup and view all the answers

    What is the effect of Apraclonidine 1% on a pupil with Horner's Syndrome?

    <p>It dilates the pupil</p> Signup and view all the answers

    Which of the following ocular decongestants causes pupil dilation and increases intraocular pressure?

    <p>Naphazoline</p> Signup and view all the answers

    What is the effect of Pilocarpine on the pupil?

    <p>Miosis</p> Signup and view all the answers

    Which of the following medications is used to treat presbyopia?

    <p>Vuity</p> Signup and view all the answers

    What is the mechanism of action of Carbonic Anhydrase Inhibitors?

    <p>Alter intracellular pH and ATPase activity</p> Signup and view all the answers

    What is the characteristic of Dorzolamide's effect on intraocular pressure?

    <p>Works only during sleep</p> Signup and view all the answers

    Which of the following adrenergic agonists is an alpha 2 receptor selective agonist?

    <p>Brimonidine</p> Signup and view all the answers

    Which anesthetic is an amide, has increased potency and duration, and is made from Mepivacaine?

    <p>Bupivacaine</p> Signup and view all the answers

    What is the mechanism of action of Methotrexate?

    <p>Folate antagonist, treating JIA</p> Signup and view all the answers

    What is the characteristic of Tryptan Blue dye?

    <p>It is used to assess dead/damaged cells</p> Signup and view all the answers

    Which of the following is an Immunomodulator?

    <p>Tacrolimus</p> Signup and view all the answers

    What is the characteristic of Indocyanine Green dye?

    <p>It is used to assess choroid abnormalities</p> Signup and view all the answers

    What is the mechanism of action of mast cell stabilizers?

    <p>Prevents calcium influx and inhibits degranulation</p> Signup and view all the answers

    What is the advantage of Pemirolast over Cromolyn sodium?

    <p>All of the above</p> Signup and view all the answers

    What is the characteristic of Ketotifen?

    <p>Inhibits eosinophil chemotaxis and activation</p> Signup and view all the answers

    What is the mechanism of action of anti-VEGF injections in treating Age-related Macular Degeneration (AMD)?

    <p>Block all VEGF isoforms</p> Signup and view all the answers

    What is the advantage of Alcaftadine (Lastacaft)?

    <p>Is a multi-action drug with mast cell stabilizing properties</p> Signup and view all the answers

    What type of corticosteroid is Medrysone?

    <p>Progesterone</p> Signup and view all the answers

    What is the characteristic of Bromfenac that allows for increased penetration?

    <p>Low pH</p> Signup and view all the answers

    What is the mechanism of action of Nepafenac?

    <p>Is a prodrug that is converted to an active metabolite</p> Signup and view all the answers

    What is the advantage of Loteprednol?

    <p>It has a lower risk of increasing intraocular pressure</p> Signup and view all the answers

    What is the characteristic of Difluprednate?

    <p>It is administered at a half dose equal to Predforte</p> Signup and view all the answers

    What is the mechanism of action of Aminoglycosides?

    <p>30 S protein synthesis inhibition</p> Signup and view all the answers

    Which medication is used to treat dry eye?

    <p>Cyclosporine</p> Signup and view all the answers

    What is the mechanism of action of Vancomycin?

    <p>Cell wall synthesis inhibition</p> Signup and view all the answers

    Which antibiotic is effective against Pseudomonas?

    <p>Tobramycin</p> Signup and view all the answers

    What is the mechanism of action of Bacitracin?

    <p>Cell membrane disruption</p> Signup and view all the answers

    Which medication is used to treat neurotrophic keratitis?

    <p>Oxervate</p> Signup and view all the answers

    What is the mechanism of action of Tetracyclines?

    <p>Protein synthesis inhibition</p> Signup and view all the answers

    Which antibiotic is contraindicated in vitamin K deficiency?

    <p>Cephalosporin</p> Signup and view all the answers

    What is the mechanism of action of Macrolides?

    <p>50 S protein synthesis inhibition</p> Signup and view all the answers

    Which medication is used to treat Demodex?

    <p>Tea Tree oil</p> Signup and view all the answers

    More Like This

    Eye Infections Treatment
    12 questions

    Eye Infections Treatment

    SuperiorLorentz avatar
    SuperiorLorentz
    Bacterial Eye Infections Treatment
    42 questions

    Bacterial Eye Infections Treatment

    SuperiorLorentz avatar
    SuperiorLorentz
    Bacterial Eye Infections Treatment
    6 questions

    Bacterial Eye Infections Treatment

    SuperiorLorentz avatar
    SuperiorLorentz
    Ophthalmology Chapter 15 Flashcards
    35 questions

    Ophthalmology Chapter 15 Quiz & Flashcards on Phak/o

    PatriLavender avatar
    PatriLavender
    Use Quizgecko on...
    Browser
    Open
    Browser
    Browser