|Zygomatico-orbital artery, lacrimal and palpebral branches (lateral orbit)||Ophthalmic artery|
|Frontal branch (see examples below)|
Left common carotid injection, lateral and unsubtracted ap views
The internal carotid is occluded. Multiple collaterals are present including a fronto-orbital branch of the superficial temporal artery traversing the supraorbital notch to the supraorbital branch of the ophthalmic artery.
Lateral common carotid angiogram
The internal carotid artery is occluded at the origin. There is retrograde flow in the ophthalmic artery from the superficial temporal artery via the supraorbital artery.