Final answer:
In exophthalmos, the patient's eyeballs appear enlarged and protruding, a condition commonly associated with Graves' disease.
Step-by-step explanation:
The eyeballs of a patient with exophthalmos typically look enlarged and protruding. Exophthalmos is often associated with Graves' disease, a type of hyperthyroidism, where inflammation and other tissue changes cause the eyes to bulge out from the eye sockets. This condition is recognizable due to its distinct appearance and should not be confused with other vision problems such as myopia or hyperopia, which relate to the focal points of vision in relation to the retina.