Central retinal artery obstruction in the presence of cilio-retinal artery
a case report
DOI:
https://doi.org/10.70313/2718.7446.v17.n04.371Keywords:
coagulopathy, cilioretinal artery preservation, central retinal artery occlusion, sudden vision loss, retinographyAbstract
The clinical characteristics and treatment outcome of a patient with central retinal artery occlusion (CRAO) and patent cilioretinal artery are described. A 69-year-old female patient presented with a sudden, painless decrease in visual acuity in her left eye, with a five-hour onset. Fundoscopy of the left eye revealed retinal pallor in all four quadrants due to CRAO, with preservation of the papillomacular region, consistent with cilioretinal artery patency.
Consultations with cardiology and internal medicine were conducted, as interdisciplinary management is essential. Arterial Doppler ultrasound of the supra-aortic trunks showed a fibrous-calcific plaque with a 20% lumen reduction at the bilateral carotid bifurcation, and echocardiography indicated mild tricuspid insufficiency. Initial treatment included ocular massage and the application of topical hypotensive agents.
The patient’s final visual acuity was hand motion at 3 meters in the left eye (LE), without correction, and 6/10 with corrective lenses in the right eye (RE). Despite later developing rubeosis and retinal neovascularization, which required anti-VEGF treatment and retinal photocoagulation, the presence of a cilioretinal artery—present in approximately 20% of individuals—has a better prognosis as it allows macular area perfusion, though it does not prevent ocular neovascularization.
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