Diplopia (Double Vision)


Diplopia is the medical term for double visionBinocular double vision may occur in Superficial Siderosis patients suffering from cranial nerve palsies affecting the III, IV or VI nerves.

When the images produced by each eye do not match your brain misinterprets the information so you see two misaligned objects. Cranial nerve palsies were the most common cause of binocular diplopia (67%) with half of these being abducent nerve palsies

This type of diplopia should disappear when one eye is covered. A neuro-ophthalmologist will be able to prescribe the best options for your situation. Wearing an eye patch or use of prism lens eyeglasses have been found to be helpful in managing diplopia.


¹To evaluate the causes and outcomes for patients presenting with diplopia to an eye casualty department. Patients presenting with diplopia as a principal symptom, who were referred to the Orthoptic Department from Moorfields Eye Casualty over a 12-month period, were retrospectively investigated. One hundred and seventy-one patients were identified with complete records in 165 cases. There were 99 men and 66 women with an age range of 5-88 years. Monocular diplopia accounted for 19 cases (11.5%), whereas 146 patients (88.5%) had binocular diplopia. Cranial nerve palsies were the most common cause of binocular diplopia accounting for 98 (67%) of cases. Isolated sixth nerve palsy was the largest diagnostic group (n=45). Microvascular disease (hypertension or diabetes mellitus, or both) was present in 59% of patients with cranial nerve palsies, and of this group, 87% resolved spontaneously by 5 months rising to 95% by 12 months. Patients with clinically isolated single cranial nerve palsies associated with diabetes or hypertension are likely to recover spontaneously within 5 months and initially require observation only. However, patients with unexplained binocular diplopia and those who progress or fail to recover should be investigated to establish the underlying etiology and managed as appropriate.
Causes and outcomes for patients presenting with diplopia to…. Available from: https://www.researchgate.net/publication/7051048_Causes_and_outcomes_for_patients_presenting_with_diplopia_to_an_eye_casualty_department 
Sources: Superficial siderosis is a rare neurologic disease characterized by progressive sensorineural hearing loss, cerebellar ataxia, pyramidal signs, and neuroimaging findings revealing hemosiderin deposits in the spinal and cranial leptomeninges and subpial layer. The disease progresses slowly, and patients may present with mild cognitive impairment, nystagmus, dysmetria, spasticity, dysdiadochokinesia, dysarthria, hyperreflexia, and Babinski signs. Additional features reported include dementia, urinary incontinence, anosmia, ageusia, and anisocoria. Superficial siderosis MedGen UID: 831707 •Concept ID: CN226971 •Finding Orphanet: ORPHA247245
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