Certified Ophthalmic Assistant Practice Exam

Of the following conditions, which one is least likely to cause transient loss of vision?

1. Papilledema

2. Carotid artery disease

3. Thyroid disorder

4. Migraine

The correct answer is: Thyroid disorder

Thyroid disorder is least likely to cause transient loss of vision compared to the other conditions listed. Transient loss of vision is often associated with conditions that affect blood flow to the eye or optic nerve. Papilledema, carotid artery disease, and migraine can all impact blood flow either to the eye or to the brain, leading to temporary visual disturbances. However, thyroid disorders typically do not directly affect blood flow to the eye or optic nerve in a way that would cause transient loss of vision.