Diplopia

Patients frequently present to medical facilities and emergency rooms with symptoms of diplopia, where a single object is observed as two items. It is important for the clinician to know the clinical presentation of diplopia to be able to determine its aetiology and management after establishing important historical information. The aetiology of diplopia can vary from common ocular entities, such as corneal and lens problems, binocular vision anomalies, and uncorrected astigmatism; to life-threatening conditions such as intracranial anomalies. The management options of diplopia depend on several factors, including its specific cause and prognosis. This paper reviews the common causes and characteristics of diplopia, to assist in appropriate management strategies.