Allergies can cause many ear, nose, and throat symptoms in children, but allergies can be difficult to separate from other causes. Here are some clues that allergies may be affecting your child. Children with nasal allergies often have a history of other allergic tendencies (or atopy).
Is the diplopia constant or intermittent? Causes of intermittent diplopia include thyroid disease, myasthenia gravis, multiple sclerosis, and exo/eso breakdown. Causes of constant diplopia include cranial nerve palsy, thyroid or myasthenia gravis cases, and post-surgical cases. The most frequent surgical case that can result in diplopia is cataract surgery.
People over 10 years of age with third nerve palsy usually have double vision (diplopia) due to misalignment of the eyes. If a droopy eyelid (ptosis) covers the pupil, diplopia may not be noticeable. Ptosis of the eyelid or an enlarged pupil may be the first sign of a third nerve palsy.