AHS 307 Opthalmic Drugs

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  • 1/15 Questions

    Which of the following is used to constrict the pupils?

    • Mydriatics
    • Miotics
    • Cycloplegics
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About This Quiz

The AHS 307 Ophthalmic Drugs quiz assesses knowledge on eye medications in veterinary medicine, focusing on pupil constriction, mydriatics, and the use of corticosteroids. It is crucial for understanding treatment protocols and drug effects on animal eye health.

Pharmacology Quizzes & Trivia

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  • 2. 

    The aqueous humor is made by the ciliary process located behind the iris

    • True

    • False

    Correct Answer
    A. True
    Explanation
    The aqueous humor is a clear fluid that fills the front part of the eye, between the cornea and the lens. It is responsible for maintaining the shape of the eye and providing nutrients to the cornea and lens. The ciliary process is a part of the ciliary body, which is located behind the iris. It is responsible for producing the aqueous humor. Therefore, the statement that the aqueous humor is made by the ciliary process located behind the iris is true.

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  • 3. 

    Corticosteroids should not be used in the eye in the case of a Bacterial or Fungal infection. 

    • True

    • False

    Correct Answer
    A. True
    Explanation
    Corticosteroids should not be used in the eye in the case of a bacterial or fungal infection because corticosteroids suppress the immune system and can worsen the infection. Bacterial and fungal infections require specific antimicrobial treatment, and using corticosteroids can delay the healing process and potentially lead to complications. Therefore, it is important to avoid using corticosteroids in the eye when there is a bacterial or fungal infection present.

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  • 4. 

    Corticosteroids should be used in the eye in the case of a corneal ulcer.

    • True

    • False

    Correct Answer
    A. False
    Explanation
    Corticosteroids should not be used in the eye in the case of a corneal ulcer. Corneal ulcers are typically caused by bacterial or fungal infections, and corticosteroids can suppress the immune system and worsen the infection. The use of corticosteroids in this case can lead to delayed healing and potentially more severe complications. Therefore, it is important to avoid using corticosteroids in the eye when treating a corneal ulcer.

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  • 5. 

    Collagenase is a mucolytic agent that blocks the enzyme acetylcysteine.  

    • True

    • False

    Correct Answer
    A. False
    Explanation
    The opposite is true; acetylcysteine blocks collagenase.

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  • 6. 

    Which would be used to constrict the pupils? (and is most common)

    • Pilocarpine

    • Atropine

    • Fluorescein sodium

    Correct Answer
    A. Pilocarpine
    Explanation
    Pilocarpine is a medication that is commonly used to constrict the pupils. It works by stimulating the muscles in the eye that control the size of the pupil, causing them to contract. This can be useful in certain medical situations, such as during eye examinations or surgeries, where a smaller pupil size is desired. Atropine, on the other hand, is a medication that is used to dilate the pupils. Fluorescein sodium is a dye that is used to detect corneal abrasions and is not involved in pupil constriction.

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  • 7. 

    Keratoconjunctivitis sicca is a disease in which tear production is ____________.

    Correct Answer
    decreased
    Explanation
    Keratoconjunctivitis sicca is a disease that affects the tear production in the eyes. In this condition, tear production is reduced or decreased. This leads to dryness and inflammation of the cornea and conjunctiva, causing symptoms such as dry eyes, redness, and irritation. Treatment typically involves the use of artificial tears or other lubricating eye drops to alleviate the symptoms and improve tear production.

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  • 8. 

    Which of these would be contraindicated in animals with glaucoma and KCS?

    • Atropine

    • Epinephrine

    • Acetozolamide

    • Cyclosporine

    Correct Answer
    A. Atropine
    Explanation
    Atropine would be contraindicated in animals with glaucoma and KCS because it is a mydriatic agent that causes pupil dilation. In glaucoma, the increased pressure in the eye can damage the optic nerve, and dilating the pupil can further increase this pressure. Additionally, in KCS (keratoconjunctivitis sicca), there is already a deficiency of tear production, and dilating the pupil can exacerbate dryness and discomfort in the eye. Therefore, using atropine in these conditions could worsen the symptoms and potentially cause harm to the animal's eyes.

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  • 9. 

    Some corticosteroids frequently used in the eye include:

    • Acetozolamide

    • Prednisolone

    • Mannitol

    • Betamethasone

    • Dexamethasone

    • Pilocarprine

    • Hydrocortisone

    Correct Answer(s)
    A. Prednisolone
    A. Betamethasone
    A. Dexamethasone
    A. Hydrocortisone
  • 10. 

    What does KCS stand for?

    Correct Answer(s)
    keratoconjunctivitis sicca
    Explanation
    KCS stands for keratoconjunctivitis sicca, which is a medical term used to describe a condition commonly known as dry eye syndrome. This condition occurs when the eyes do not produce enough tears or when the tears evaporate too quickly. It can cause discomfort, redness, itching, and a gritty sensation in the eyes. Treatment options for KCS include artificial tears, prescription eye drops, and lifestyle changes to improve eye health.

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  • 11. 

    Used to ais in the diagnosis of Horner's syndrome and used to prevent glaucoma

    • Epinephrine

    • Tropicamide

    • Atropine

    • Cyclosporine

    Correct Answer
    A. Epinephrine
    Explanation
    Epinephrine is used in the diagnosis of Horner's syndrome because it causes dilation of the pupil in unaffected eyes. It is also used to prevent glaucoma by reducing intraocular pressure. Tropicamide is a mydriatic drug used to dilate the pupil for eye examinations. Atropine is another mydriatic drug used for pupil dilation and also for the treatment of certain eye conditions. Cyclosporine is an immunosuppressant medication used to prevent rejection in organ transplant patients and is not directly related to the diagnosis of Horner's syndrome or glaucoma prevention.

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  • 12. 

    What kinds of drugs can be used to treat Pannus?

    • Corticosteroids

    • Cyclosporine A

    • Acetozolamide

    • Collagenase

    • NSAIDS

    Correct Answer(s)
    A. Corticosteroids
    A. Cyclosporine A
    Explanation
    Corticosteroids and cyclosporine A can be used to treat Pannus. Corticosteroids are anti-inflammatory drugs that can help reduce the inflammation and swelling associated with Pannus. Cyclosporine A is an immunosuppressant that can help suppress the immune system, which is often overactive in Pannus. These medications can help alleviate symptoms and slow down the progression of the disease. Acetozolamide and collagenase are not typically used to treat Pannus, and NSAIDs may provide some relief from pain and inflammation but are not specific treatments for Pannus.

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  • 13. 

    Keratoconjunctivitis sicca can result in:

    • Persistent mucopurulent conjunctivitis

    • The dog turning into Lady Gaga

    • Corneal scarring

    • Corneal ulceration

    • Increase in tear production

    • A color change of the iris

    Correct Answer(s)
    A. Persistent mucopurulent conjunctivitis
    A. Corneal scarring
    A. Corneal ulceration
    Explanation
    Keratoconjunctivitis sicca, also known as dry eye syndrome, is a condition that results in decreased tear production and dryness of the eyes. This can lead to various complications such as persistent mucopurulent conjunctivitis, which is characterized by persistent discharge and inflammation of the conjunctiva. Additionally, the dryness can cause corneal scarring and ulceration, which can further impair vision and lead to discomfort. Therefore, the given answer options of persistent mucopurulent conjunctivitis, corneal scarring, and corneal ulceration are all potential consequences of keratoconjunctivitis sicca.

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  • 14. 

    What kinds of drugs should be avoided if a cornea stains with fluorescein?

    • Drugs in liquid form

    • Drugs in ointment form

    • Drugs that contain steroids

    • Drugs that contain lubricants

    Correct Answer(s)
    A. Drugs in ointment form
    A. Drugs that contain steroids
    Explanation
    When a cornea stains with fluorescein, it indicates damage or injury to the cornea. Drugs in ointment form should be avoided because they can further irritate the cornea and hinder the healing process. Similarly, drugs that contain steroids should be avoided as they can suppress the immune response and delay the healing of the cornea. Therefore, both drugs in ointment form and drugs that contain steroids should be avoided in this situation.

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  • 15. 

    What are five veterinary mydriatics?

    • Atropine

    • Homatropine

    • Phenylephrine

    • Pilocarpine

    • Tropicamide

    • Dorzolamide

    • Epinephrine

    • Acetazolamide

    • Ofloxacin

    Correct Answer(s)
    A. Atropine
    A. Homatropine
    A. Phenylephrine
    A. Tropicamide
    A. Epinephrine
    Explanation
    The given answer lists five veterinary mydriatics, which are drugs used to dilate the pupils in animals. Atropine, Homatropine, Phenylephrine, Tropicamide, and Epinephrine are all commonly used mydriatics in veterinary medicine. These drugs work by either blocking the action of certain muscles in the eye or stimulating the muscles that dilate the pupil. They are used for various purposes, such as during eye examinations or surgeries.

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  • Current Version
  • Mar 21, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Dec 01, 2012
    Quiz Created by
    Nemorae
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