Abstract
Purpose :
Hayreh et al reported that in humans in cases of central retinal artery occlusion (CRAO), a partial retinal blood flow exists in most situations. The cilioretinal arteries belong to the posterior cilioretinal artery system, and usually arise from the peripapillary choroid or directly from one of the short posterior cilioretinal arteries. This study analyze clinical manifestation and prognosis of patients of central retinal artery occlusion(CRAO) with cilio-retinal artery sparing.
Methods :
We analyzed 163 CRAO patients, including 12 ciloretinal artery sparing CRAO patients. We performed a retrospective, observational clinical study. Inclusion criteria were non-arteritic CRAO, BCVA≤20/63 (Snellen), Follow-up period≥1mo, and exclusion criteria were iatrogenic cause, combined ocular pathologies, ocular ischemic syndrome, trauma cases. Outcome measures were visual outcome, papillomacular bundle involvement, and remnant visual field.
Results :
Proportion of cilioretinal artery sparing CRAO was 9% (12/134). Overall, initial (1.90±0.62 vs 2.38±0.26, p-value<0.01) and final BCVAs (1.48±0.95 vs 2.26±0.38, p-value<0.01) were significantly different between the cilioretinal artery sparing and complete CRAO groups. In sub-group analysis to compare between the Good Vision Group(BCVA≥40/200) and the Poor Vision Group(BCVA<40/200) of cilioretinal artery sparing CRAO patients, inner retinal thickening of papillomacular bundle area at initial exam was statistically significant. (p-value = 0.030)
Conclusions :
In conclusion, cilio-retinal artery sparing CRAO patients have good prognosis of visual acuities compared with CRAO patients. And ischemic change of papillomacular bundle shows a significant association with visual acuities and visual field.
This abstract was presented at the 2019 ARVO Annual Meeting, held in Vancouver, Canada, April 28 - May 2, 2019.