Certified Ophthalmic Assistant Practice Exam

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Study for the Certified Ophthalmic Assistant Exam. Prepare with flashcards and multiple choice questions, each question has hints and explanations. Get ready for your exam!

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Which type of imaging provides a cross-sectional view useful in evaluating glaucoma?

B-scan ultrasound
Fluorescein angiography (FA)
Indocyanine green angiography (ICGA)
Optical Coherence Tomography (OCT)

The correct answer is: Optical Coherence Tomography (OCT)

Optical Coherence Tomography (OCT) provides a cross-sectional view that is particularly useful in evaluating glaucoma. OCT uses light waves to produce high-resolution, cross-sectional images of the retina, optic nerve head, and other structures in the back of the eye. This imaging technique is beneficial in assessing the thickness of the retinal nerve fiber layer, which can be an early indicator of glaucomatous damage. On the other hand: A. B-scan ultrasound is typically used to visualize the posterior segment of the eye and its structures when details cannot be seen directly. B. Fluorescein angiography (FA) and C. Indocyanine green angiography (ICGA) are imaging techniques used to evaluate blood flow and vascular structures in the eye, not specifically for assessing glaucoma.