Final answer:
Strabismus is the medical term commonly known as "crossed eyes" where the eyes do not align properly.
Step-by-step explanation:
The medical term commonly known as "crossed eyes" is strabismus. Strabismus is a condition where the eyes do not properly align with each other when looking at an object, causing one or both eyes to turn inward, outward, upward, or downward. It can lead to double vision or reduced vision in one eye if not treated early. The other terms listed—exophthalmos, myopia, and presbyopia—refer to different eye conditions.
Exophthalmos is the bulging of the eyes; myopia, also known as nearsightedness, is the difficulty in seeing distant objects clearly; and presbyopia is a common vision problem associated with aging, resulting in difficulty focusing on close objects. The medical term commonly known as "crossed eyes" is strabismus. Strabismus is a condition in which the eyes are misaligned and do not coordinate properly, causing one or both eyes to point in different directions. This can result in a person appearing to have crossed eyes.