36 Questions
Which artery is the main blood supply to the eye?
Ophthalmic artery
What determines the intraocular pressure (IOP)?
All of the above
Which cranial nerve is not a true cranial nerve but an outgrowth of the brain?
Optic nerve
Which nerve provides motor function to the intrinsic muscles of the larynx and the heart?
Vagus nerve
What is the most frequently performed intraocular surgical procedure?
Cataract surgery
Which nerve is the efferent pathway for the oculocardiac reflex?
Vagus nerve
What is the preferred anesthesia method for eye surgery?
Ocular regional anesthesia
Which of the following is the most important determinant of intraocular pressure (IOP)?
Balance between production and elimination of aqueous humor
Which drug reduces aqueous humor production?
Acetazolamide
What is the most common injury occurring after general anesthesia?
Corneal abrasion
Which surgical technique has increased the popularity of topical anesthesia for ophthalmic procedures?
Cataract surgery
Which of the following is true about the evaluation of an ophthalmic block?
Residual movement should be assessed to determine if additional anesthesia is required
Which anesthesia is recommended for ophthalmic procedures in adults, especially the elderly?
Regional anesthesia
What should be considered to decrease back strain during ophthalmic procedures?
Pillows under knees
What should be done to decrease the incidence of postoperative nausea during general anesthesia for ophthalmic procedures?
Use a multimodal approach
Which cranial nerve provides motor function to the intrinsic muscles of the larynx and the heart?
Cranial nerve X
What determines the intraocular pressure (IOP)?
All of the above
Which artery is the main blood supply to the eye?
Ophthalmic artery
Which nerve provides motor function to the intrinsic muscles of the larynx and the heart?
Vagus nerve
What is the most frequently performed intraocular surgical procedure?
Cataract surgery
What is the preferred anesthesia method for eye surgery?
Local anesthesia
What is the ocular regional needle block commonly used for?
Providing analgesia and akinesia of the eye and eyelids
Which of the following is true about the evaluation of an ophthalmic block?
Residual movement indicates the effectiveness of the block
Which of the following is recommended for induction of general anesthesia for ophthalmic procedures?
Inhalation induction
What is the potential risk associated with general anesthesia for ophthalmic procedures?
Malignant hyperthermia
What should be done to decrease back strain during ophthalmic procedures?
Use pillows under the knees
Which of the following drugs can reduce intraocular pressure (IOP) by facilitating aqueous humor drainage?
Echothiophate
What is the most common injury occurring after general anesthesia for eye surgery?
Corneal abrasion
What is the main purpose of strabismus surgery?
To correct misalignment of extraocular muscles
Which gas can expand an ocular gas bubble placed during retinal reattachment surgery and potentially cause permanent blindness?
Nitrous oxide (N2O)
Which nerve is responsible for the afferent pathway of the oculocardiac reflex?
Trigeminal nerve
What is the efferent pathway for the oculocardiac reflex?
Vagus nerve
Which of the following is a possible cardiac dysrhythmia caused by the oculocardiac reflex?
Atrioventricular block
Which of the following is an example of a stimulus that can trigger the oculocardiac reflex?
Pressure on the globe
Which nerve is part of the afferent pathway for the oculocardiac reflex?
Trigeminal nerve
What is the most common cardiac dysrhythmia caused by the oculocardiac reflex?
Sinus bradycardia
Test your knowledge on retrobulbar block demonstration for eye surgery with this quiz. Learn about the steps involved in the injection process, eyelid manipulation, and inspecting the globe for akinesia. Watch a video demonstration for a better understanding.
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