Pupil disorders refer to abnormalities in the size, shape, or reaction of the pupils in the eyes. These disorders can be caused by various factors, including neurological conditions, eye injuries, or the use of certain medications. Common types of pupil disorders include anisocoria, where the pupils are unequal in size, and miosis or mydriasis, which refer to constricted or dilated pupils, respectively. Diagnosis of pupil disorders typically involves a comprehensive eye examination and may include tests to assess the function of the optic nerve and other related structures. Treatment options depend on the underlying cause and may involve medication, surgery, or monitoring the condition over time.