Table 2: Relationship between chronic ocular ischemic syndrome and ocular circulation.

Chronic ocular ischemic syndrome
PositiveNegative

Peak systolic flow velocity (m/sec)
 Ophthalmic artery−0.19 ± 0.4( )0.14 ± 0.26
 Central retinal artery0.06 ± 0.01( )0.08 ± 0.02
Ophthalmic artery flow direction (cases)
 Antegrade10( )55
 Reversed1510