What condition is commonly referred to as double vision?

The condition commonly referred to as double vision is called diplopia. Diplopia occurs when a person sees two images of a single object, which can happen in one eye (monocular diplopia) or both eyes (binocular diplopia). The underlying causes of diplopia can vary, including issues with eye muscles, nerves, or the brain itself.

Understanding diplopia is crucial for optometric technicians, as it can indicate various vision problems that require further evaluation and treatment. In contrast, amblyopia describes a condition where one eye does not develop normal vision, often referred to as "lazy eye." Strabismus involves a misalignment of the eyes, which can lead to diplopia but is not the same condition. Monocular vision refers to the ability to see with one eye only, which doesn't involve the phenomenon of double vision at all.

Recognizing diplopia as the correct answer highlights its direct association with seeing double, making it essential for assessing visual disturbances and addressing patient concerns effectively.