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Acute onset binocular diplopia: a retrospective observational study of 100 consecutive cases managed at a tertiary
1Department of Neuroophthalmology, Dhahran Eye Specialist Hospital, Dhahran, Saudi Arabia. sunkaru79@hotmail.com.
Objective:
To evaluate the demography, aetiology and clinical course of acute onset binocular diplopia (AOBD) in patients presented as emergency and managed at the neuroophthalmology clinic of a tertiary eye care centre in Saudi Arabia.
Patients And Methods:
A retrospective review of the medical records of 100 consecutive patients who attended the emergency department of Dhahran Eye Specialist Hospital with isolated, AOBD. The exclusion criteria were: (a) monocular diplopia, (b) binocular diplopia accompanied with neurological deficits other than ocular muscles dysfunction and (c) thyroid eye disease. All patients were followed until resolution of the diplopia or onward referral to another specialty for further management.
Results:
Male:female ratio was 2:1. Median age of the cohort was 56 years (range 18-90 years). Associated nerve palsy included: abducens nerve (n = 57 patients), oculomotor (n = 32 patients) and trochlear nerve (n = 3 patients). Microvascular ischaemia and ocular myasthenia gravis were two most common pathogenic mechanisms. AOBD resolved spontaneously in 98% of patients.
Conclusion:
AOBD, though an alarming and distressing condition, carries reassuringly good prognosis in majority of patients. High risk factors for vascular disease in Middle-Eastern population are reflected in microvascular aetiology as the major cause.
