1.2.4 Retinal migraine

The patient describes a fourth lifetime attack of visual loss in one eye. She reports an unsteady, wobbly feeling in her legs along with brief double vision, followed a short while later by a mild slurring of speech, before the visual symptoms fully cleared. The head pain settled on the left side of her head. Formal visual field testing done while the head pain was still ongoing confirmed the loss was limited to one eye, consistent with sudden monocular visual loss. The head pain did not begin until after the visual disturbance had already resolved, and it started well under an hour later, lasting close to fifty minutes in total before easing, and no vascular cause was demonstrated on any of these studies.