Final answer:
A patient with diplopia will usually turn their head away from the paretic muscle to eliminate double vision. This condition is called internuclear ophthalmoplegia.
Step-by-step explanation:
When experiencing diplopia, a condition known as double vision, a patient will normally turn their head away from the paretic muscle to eliminate the double vision. This is because the paretic muscle is unable to move the eye properly, causing misalignment and double vision. The condition where one eye fails to abduct while the other adducts is called internuclear ophthalmoplegia.