Understanding the Parts of the Eye and Eye Conditions
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Questions and Answers

What is the function of the sphincter pupillae?

  • Reduces intraocular pressure
  • Allows more light into the eye for better vision
  • Enlarges the pupil in low light conditions
  • Constricts the pupil in bright light (correct)

What is the physiological issue in open-angle glaucoma?

  • Efficient trabecular meshwork
  • Impaired drainage of aqueous humor (correct)
  • Increased drainage of aqueous humor
  • Decreased intraocular pressure

What can age, family history, and ethnicity do in relation to open-angle glaucoma?

  • Only affect central vision
  • Have no impact on the risk of developing open-angle glaucoma
  • Reduce the risk of developing open-angle glaucoma
  • Increase the risk of developing open-angle glaucoma (correct)

What is the role of dilator pupillae?

<p>Enlarges the pupil in low light conditions (D)</p> Signup and view all the answers

What occurs in low light conditions?

<p>Pupil dilation (mydriasis) (C)</p> Signup and view all the answers

What is a consequence of increased intraocular pressure in open-angle glaucoma?

<p>Gradual vision loss due to optic nerve damage (C)</p> Signup and view all the answers

What is the normal function of aqueous humor?

<p>To circulate through the anterior chamber of the eye (A)</p> Signup and view all the answers

What happens when the trabecular meshwork becomes less efficient?

<p>Reduced drainage of aqueous humor (C)</p> Signup and view all the answers

What kind of treatment is often involved in managing open-angle glaucoma?

<p>Medications to reduce intraocular pressure (D)</p> Signup and view all the answers

What is a consequence if open-angle glaucoma is left untreated?

<p>Central vision loss if left untreated. (C)</p> Signup and view all the answers

Which part of the eye is responsible for maintaining the eye's shape?

<p>Sclera (B)</p> Signup and view all the answers

What is the function of the vitreous humor in the eye?

<p>Maintaining the eye's shape (B)</p> Signup and view all the answers

Which part of the eye contains photoreceptor cells that convert light into electrical signals?

<p>Retina (C)</p> Signup and view all the answers

What is the function of the aqueous humor in the eye?

<p>Nourishing the cornea and lens (D)</p> Signup and view all the answers

Which part of the eye regulates the size of the pupil?

<p>Iris (C)</p> Signup and view all the answers

What is the function of the choroid in the eye?

<p>Provides blood supply to the retina (C)</p> Signup and view all the answers

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