The Eye in Systemic Diseases: Proptosis
34 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 term specifically referring to the abnormal protrusion of the eyeball?

  • Orbital cellulitis
  • Proptosis
  • Exophthalmos (correct)
  • Retrobulbar lesions

    • What is the length of the intraorbital portion of the optic nerve?

  • 10 mm
  • 18 mm
  • 30 mm
  • 25 mm (correct)

    • What is the purpose of Naffziger's method?

  • To detect the direction of proptosis
  • To measure the severity of proptosis
  • To detect asymmetrical proptosis (correct)
  • To diagnose orbital cellulitis

    • What type of lesions typically cause axial proptosis?

    <p>Space-occupying lesions within the muscle cone</p> Signup and view all the answers

    What is the term for displacement of the globe in the coronal plane?

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

    What is the purpose of the Luedde exophthalmometer?

    <p>To measure the severity of proptosis</p> Signup and view all the answers

    In what situation should drainage of infected sinuses be considered?

    <p>If there is a lack of response to antibiotics, or if there is very severe sinus disease</p> Signup and view all the answers

    What is a characteristic of preseptal cellulitis?

    <p>Normal visual acuity</p> Signup and view all the answers

    What is Chandler's classification of complication of sinusitis that involves pus in the space between bone and periosteum?

    <p>III. Subperiosteal abscess</p> Signup and view all the answers

    When is an emergency canthotomy/cantholysis warranted?

    <p>In cases of severe optic nerve compression</p> Signup and view all the answers

    What is the characteristic of orbital cellulitis according to Chandler's classification?

    <p>Proptosis and chemosis with limited impairment in EOM</p> Signup and view all the answers

    In which condition should biopsy of inflammatory tissue be performed?

    <p>In cases of atypical clinical picture</p> Signup and view all the answers

    What is the appearance of muscle on T1 weighted MRI in Tolosa-Hunt syndrome?

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

    What is the primary treatment for Tolosa-Hunt syndrome?

    <p>Systemic corticosteroids</p> Signup and view all the answers

    What is the common sensory deficit seen in Tolosa-Hunt syndrome?

    <p>Loss of sensation in the first and second divisions of the trigeminal nerve</p> Signup and view all the answers

    What is the characteristic of the clinical course of Tolosa-Hunt syndrome?

    <p>Characterized by remissions and recurrences</p> Signup and view all the answers

    What is the diagnosis of Tolosa-Hunt syndrome based on?

    <p>A diagnosis of exclusion</p> Signup and view all the answers

    What is the primary purpose of a biopsy in Tolosa-Hunt syndrome?

    <p>To rule out other causes of the symptoms</p> Signup and view all the answers

    What is the measurement of proptosis achieved with the aid of?

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

    What is the reading that indicates proptosis?

    <p>Greater than 20 mm</p> Signup and view all the answers

    What is the difference in readings between the two eyes that is suspicious of proptosis?

    <p>2-3 mm or more</p> Signup and view all the answers

    What is the term for the false impression of proptosis?

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

    What is the age group in which 80% of preseptal cellulitis cases occur?

    <p>Under 10 years of age</p> Signup and view all the answers

    What is the most common causative organism of preseptal cellulitis?

    <p>Both Staphylococcus and Streptococcus spp</p> Signup and view all the answers

    What is the investigation that shows opacification anterior to the orbital septum in preseptal cellulitis?

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

    What is the medical emergency that may cause loss of vision and even death?

    <p>Orbital cellulitis</p> Signup and view all the answers

    What is the treatment of orbital cellulitis that may be required in up to 90% of adults?

    <p>Sinus drainage</p> Signup and view all the answers

    What is the complication of orbital cellulitis that can cause increased IOP?

    <p>Exposure keratopathy</p> Signup and view all the answers

    What is the typical age of presentation for Wegener granulomatosis?

    <p>Fifth decade</p> Signup and view all the answers

    Which of the following organs is typically affected in Wegener granulomatosis?

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

    What is the characteristic type of vasculitis seen in Wegener granulomatosis?

    <p>Small vessel vasculitis</p> Signup and view all the answers

    Which of the following is a common ocular feature of Wegener granulomatosis?

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

    What is the useful serological test for diagnosing Wegener granulomatosis?

    <p>Antineutrophilic cytoplasmic antibody (cANCA variant) test</p> Signup and view all the answers

    What is the typical treatment for Wegener granulomatosis?

    <p>Cyclophosphamide and steroids</p> Signup and view all the answers

    More Like This

    Use Quizgecko on...
    Browser
    Open
    Browser
    Browser