1.2.1.2 Typical aura without headache

A 46-year-old warehouse supervisor reports three brief spells of this kind over the years, the last one ten days ago. He describes a bright, flickering arc of light appearing at the edge of his left visual field which gradually widened over roughly five minutes until it filled that whole side of vision. As it faded, tingling spread up the left side of his tongue and into his fingertips, and he found himself briefly unable to name simple objects, though he remained fully alert throughout. The whole episode was over in around 16 minutes each time. He states that his head stayed completely comfortable both during and for at least an hour afterwards - no pain, no pressure, nothing. He denies any double vision, vertigo, dysarthria or reduced consciousness, and there was no weakness in either arm or leg, nor any loss of vision confined to one eye. He does suffer from occasional headaches after long shifts, occurring independently of these spells.