Certified Ophthalmic Technician (COT) Test 2025 – 400 Free Practice Questions to Pass the Exam

Question: 1 / 400

To test the function of the superior oblique muscle, the eye should be directed into which gaze?

Up and lateral

Down and lateral

Down and medial

The correct response is to direct the eye down and medial to effectively assess the function of the superior oblique muscle. The superior oblique muscle is responsible for depression and intorsion (inward rotation) of the eye, particularly when the eye is adducted (turned toward the nose). When the eye is moved down and towards the midline (medial), it places the superior oblique muscle in an optimal position to produce its primary actions, allowing for a clear evaluation of its function.

In contrast, directing the eye into other gazes would not engage the superior oblique muscle in a way that effectively tests its function. For example, moving the eye up and lateral would primarily involve the inferior oblique muscle and possibly the superior rectus muscle instead. Similarly, looking straight ahead would not challenge the superior oblique sufficiently. Hence, down and medial gaze provides the necessary conditions to test the muscle properly.

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