Certified Paraoptometric (CPO) Practice Exam 2025

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Optical Coherence Tomography (OCT) is characterized by:

  1. An invasive surgical imaging technique

  2. A laser-based, non-contact imaging technique

  3. A traditional X-ray method for eye examination

  4. A method that uses dye to visualize blood vessels

The correct answer is: A laser-based, non-contact imaging technique

Optical Coherence Tomography (OCT) is indeed characterized as a laser-based, non-contact imaging technique. This advanced imaging modality utilizes light waves to take cross-section pictures of the retina, allowing for high-resolution imaging of various structures within the eye. The non-contact nature of OCT means it can be performed without physically touching the patient's eye, which enhances patient comfort and safety during the procedure. Additionally, being laser-based allows for precise imaging, helping clinicians in diagnosing and monitoring conditions such as glaucoma, macular degeneration, and other retinal diseases.

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