What is the term for double vision?

The term "diplopia" specifically refers to double vision, where a person sees two images of one object. This condition can be a result of various underlying issues, such as misalignment of the eyes (strabismus), neurological conditions, or other disorders affecting the optic pathways. Understanding diplopia is essential for diagnosing and treating vision problems effectively, as it can significantly impact an individual's daily activities and quality of life.

The other terms do not relate to double vision. Coloboma refers to a defect in the eye's structure, particularly the iris or retina. Ptosis is the drooping of the upper eyelid which can affect vision but does not directly refer to the perception of double images. Occlusion involves blocking or closing off an area, often in reference to blood vessels, and is unrelated to visual perception. Knowing these distinctions is important for individuals studying vision health and related fields.