Certified Ophthalmic Technician (COT) Practice Test 2026 - Free COT Practice Questions and Study Guide

Optical Coherence Tomography (OCT) utilizes high-resolution imaging to capture detailed cross-sectional images of the retina and other ocular structures. This technology relies on light waves to measure the time delay and intensity of reflected light from various layers of the retina, allowing for the differentiation of microstructural features with exceptional clarity.

High-resolution imaging is critical in OCT because it enables the detection of subtle changes in the retinal layers that can indicate conditions like macular degeneration, diabetic retinopathy, and glaucoma. The ability to visualize these structures with high fidelity is what sets OCT apart from other imaging modalities.

In contrast, low-resolution imaging would not provide the necessary detail for accurate diagnosis and monitoring of ocular diseases. Infrared imaging is useful in other contexts but does not specifically refer to the imaging technique used in OCT. Ultrasound imaging serves a different purpose and is not designed for the same level of detail in visualizing retinal structures as OCT. Hence, high-resolution imaging is the appropriate answer based on the capabilities and applications of OCT technology.