Ocular Circulation and Chronic Ocular Ischemic Syndrome before and after Carotid Artery Revascularization Surgery

Table 2

Relationship between chronic ocular ischemic syndrome and ocular circulation.

	Chronic ocular ischemic syndrome
	Positive		Negative
Peak systolic flow velocity (m/sec)
Ophthalmic artery	−0.19 ± 0.4	(𝑃<0.05)	0.14 ± 0.26
Central retinal artery	0.06 ± 0.01	(𝑃<0.05)	0.08 ± 0.02
Ophthalmic artery flow direction (cases)
Antegrade	10	(𝑃<0.05)	55
Reversed	15		10