Table 1.

Categories of transient vision loss

Location	Causes of transient vision loss
Monocular	Vascular – embolic
	Vascular – thrombotic (giant cell arteritis)
	Vascular – stenotic
	Vasospasm
	Retinal migraine
	Ocular – closed angles, hyphema
Binocular	Vascular – thromboembolic
	Occipital epilepsy
	Complex migraine
Monocular or binocular	Papilledema or optic disc disease (transient visual obscurations)
	Uhthoff phenomena

Notes: Monocular and binocular vision losses have overlapping and specific causes. Transient visual obscurations and Uhthoff phenomena are also important causes of transient vision loss, but the context of these is distinct enough from the others that we will not be highlighting them in this review.