Practice Quiz

Ophthalmic Assistant

Category - Ophthalmic Imaging

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A 3-D image of the entire optic nerve can be attained with what diagnostic procedure?
  1. Heidelberg retinal tomography
  2. Fundus photography
  3. GDx scanning laser polarimeter
  4. Corneal topography
Explanation
Answer: A - Heidelberg retinal tomography

A 3-D image of the entire optic nerve can be attained with a Heidelberg retinal tomography (HRT). The HRT takes images of deeper and deeper layers of the optic nerve until the desired depth has been reached. Finally, the instrument takes all of these pictures of the layers and puts them together to form a 3-D image of the entire optic nerve.
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