Optic Disk Changes
Permanent CRAO with cilioretinal artery sparing
Disk edema is present in 6% patients
Disk is pale in 75% of patients within 2 months of onset
Permanent CRAO
Disk edema is always present in arteritic CRAO
Disk is pale in 39% of NA-CRAO patients
Transient CRAO
Disk edema is present in 6% patients