Understanding Glaucoma Lecture
23 Questions
3 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 meaning of the term 'glaucoma'?

  • Blurry vision
  • Redness of the eyes
  • Clouded or blue green hue (correct)
  • Double vision
  • What is the average range of normal intraocular pressure (IOP)?

  • 5-10 mmHg
  • 25-30 mmHg
  • 12-21 mmHg (correct)
  • 35-40 mmHg
  • What is the primary cause of glaucoma?

  • Increased intraocular pressure (correct)
  • Decreased tear production
  • Reduced optic nerve sensitivity
  • Increased blood flow to the eye
  • Where is the aqueous humor produced in the eye?

    <p>Posterior chamber</p> Signup and view all the answers

    What happens when the drainage canal in the eye is partially or completely blocked?

    <p>Fluids build up in the eye chamber leading to increased pressure</p> Signup and view all the answers

    What is the classification of glaucoma based on the absence or presence of pupillary block?

    <p>Open angle and angle closure glaucoma</p> Signup and view all the answers

    Which type of glaucoma is characterized by increased pressure within the eye due to blocked drainage canal?

    <p>Angle closure glaucoma</p> Signup and view all the answers

    What is the outcome of progressive optic neuropathy in glaucoma?

    <p>Retinal ganglion cell death</p> Signup and view all the answers

    'Ocular hypertension' refers to:

    <p>'High pressure of fluids within the eye'</p> Signup and view all the answers

    'Trabecular meshwork' is primarily involved in:

    <p>Draining aqueous humor from the eye</p> Signup and view all the answers

    What is the term used to describe death of retinal ganglion cells in glaucoma?

    <p>Glaucomatous optic neuropathy</p> Signup and view all the answers

    What is the primary cause of glaucoma?

    <p>Block in transport of neurotrophins from brain to RGCs</p> Signup and view all the answers

    Which type of glaucoma is usually asymptomatic until the onset of substantial visual field loss?

    <p>Open angle glaucoma</p> Signup and view all the answers

    What is the main risk factor for developing glaucoma in individuals over 65 years of age?

    <p>Decreased retinal blood flow</p> Signup and view all the answers

    What does PACG stand for in clinical manifestation?

    <p>Primary Angle Closure Glaucoma</p> Signup and view all the answers

    In which type of glaucoma is the iris displaced forward due to iris thickening caused by pupil dilation?

    <p>Congenital glaucoma</p> Signup and view all the answers

    What happens when the angle is closed in glaucoma?

    <p>Rapid buildup of aqueous humor in the anterior chamber</p> Signup and view all the answers

    What is the main consequence of progressive optic neuropathy in all types of glaucoma?

    <p>Increased cupping and cup-to-disc ratio</p> Signup and view all the answers

    What is the recommended frequency of screening for individuals aged 40-54 years with risk factors for glaucoma?

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

    Which factor leads to decreased retinal blood flow in glaucoma?

    <p>Intraocular pressure (IOP) build-up</p> Signup and view all the answers

    What are the prodromal symptoms experienced by patients with acute episodes of glaucoma?

    <p>Blurred or hazy vision with halos around lights and ocular pain</p> Signup and view all the answers

    What causes the displacement of the iris forward in glaucoma?

    <p>Iris thickening caused by pupil dilation</p> Signup and view all the answers

    What is the main effect of a closed angle in glaucoma?

    <p>The iris is displaced forward and rapid buildup of aqueous humor occurs in the anterior chamber.</p> Signup and view all the answers

    More Like This

    Basics of Ophthalmology for Dental Students
    33 questions
    Basics of Ophthalmology for Dental Students
    33 questions
    Ophthalmology Part II VIBE Quiz
    1 questions
    Use Quizgecko on...
    Browser
    Browser