Background Sudden loss of vision requires careful history and examination to
identify the underlying cause.
Objective This article discusses the various causes of sudden loss of
vision and provides the general practitioner with a guide to
Discussion Rapidity of onset, duration and associated symptoms provide
vital clues to the nature of the disease process. Simple
examination techniques such as visual acuity measurement,
confrontational visual field testing, pupil assessment and
fundoscopy are integral to the appropriate assessment,
treatment and referral of patients presenting with sudden loss
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