Certified Ophthalmic Medical Technologist (COMT) 2026 – 400 Free Practice Questions to Pass the Exam

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What does a blocked vessel indicate in terms of retinal blood flow?

Increased blood flow

Decreased blood flow

A blocked vessel in the context of retinal blood flow indicates a decreased blood flow. When a vessel is obstructed, it restricts the normal flow of blood, which can lead to reduced delivery of oxygen and nutrients to the retinal tissues. This situation can cause ischemic conditions in the retina, potentially resulting in vision problems or loss if not addressed.

In contrast, options that suggest increased, normal, or irregular blood flow do not accurately reflect the implications of a blockage. Increased blood flow would not occur since the obstruction impairs circulation, while normal flow would not be possible with a blockage present. Irregular flow, while it could imply some disruption, does not specifically convey the severity of a blocked vessel compared to the definitive impact of decreased blood flow.

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Normal blood flow

Irregular blood flow

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